Climate change must be understood and responded to as a profound problem of global justice and ethics. This is so because: (a) it is a problem mostly caused by some nations and people emitting high-levels of greenhouse gases (ghg) in one part of the world who are harming or threatening tens of millions of living people and countless numbers of future generations throughout the world who include some of the world’s poorest people who have done little to cause the problem, (b) the harms to many of the world’s most vulnerable victims of climate change are potentially catastrophic, (c) many people most at risk from climate change often can’t protect themselves by petitioning their governments; their best hope is that those causing the problem will see that justice requires them to greatly lower their ghg emissions, (d) to protect the world’s most vulnerable people nations must limit their ghg emissions to levels that constitute their fair share of safe global emissions, and, (e) climate change is preventing some people from enjoying the most basic human rights including rights to life and security among others. Because climate change is a profound problem of justice those causing the problem may not use self-interest alone as justification for their policy responses to human-induced warming, they must respond in ways consistent with their responsibilities and duties to others. In light of this the following questions should be asked of those who oppose national action on climate change on the basis of excessive costs to the national economy or scientific uncertainty.
Questions that should be asked of those opposing national action on climate change on the basis of cost to the national economy:
1. When you claim that a government emitting high levels of ghgs need not reduce its ghg emissions because the costs to it of so doing are too high, do you deny that high-emitting governments not only have economic interests in climate change policies but also duties and obligations to tens of millions of people around the world who are most vulnerable to climate change’s harshest impacts?
2. If you argue that high costs to a nation of reducing its ghg emissions to its fair share of safe global ghg emissions justify non-action, how have you considered the increased harms and risks to poor vulnerable people and nations that will continue to grow as atmospheric ghg concentrations continue to rise? In other words how have you considered the harms to others that will be caused by government inaction on climate change?
3. If the justification for a nation to reduce its ghg emissions to its fair share of safe global emissions is that costs to it are too high, yet inaction causes loss of life and great harm to people outside the nation’s borders, is the use of a cost justification by a nation for non-action morally supportable?
4. Do you agree that those nations and people around the world who will most be harmed by climate change have a right to participate in a decision by a nation that chooses to not adopt climate change policies because costs to it are deemed unacceptable?
5. Do you agree that nations that emit ghgs at levels beyond their fair share of safe global emissions have a duty to help pay for reasonable adaptation needs and unavoidable damages of low-emitting countries and individuals that have done little to cause climate change?
6. If you disagree that all nations have a duty to reduce their ghg emissions to their fair share of safe global emissions without regard to cost to it, do you also deny the applicability of the well-established international legal norm that almost all nations have agreed to in 1992 in the Rio Declaration on Environment and Development called the “polluter pays” principle which holds that polluters should pay for consequences of their pollution?
7. Do you agree that nations that have very high per capita and historical ghg emissions compared to other nations and so have contributed more than other nations to the rise of atmospheric concentrations of ghgs to dangerous levels have a greater duty to reduce their ghg emissions than nations that have done comparatively little to create the current threat of human-induced warming?
8. If you argue that the United States should not adopt climate change policies on the basis that economic competitors such as China have not adopted climate change policies, are you claiming that no nation has a duty to reduce its ghg emissions to its fair share of safe global emissions until all other nations reduce their ghg emissions accordingly?
9. In arguing that the United States or other high-emitting nations need not reduce their ghg emissions to their fair share of safe global emissions based on cost, how have you considered, if at all, that all nations have agreed in international climate negotiations to take steps to limit warming to 2 degree C because warming greater than this amount will not only create harsh impacts for tens of millions of people but runs the risk of creating rapid non-linear warming that will outstrip the ability of people and nations to adapt?
Questions that should be asked of those opposing national action on climate change on the basis of scientific uncertainty:
1. When you argue that a nation emitting high levels of ghgs need not adopt climate change policies because there is scientific uncertainty about adverse climate change impacts, are you arguing that a nation need not take action on climate change until scientific uncertainties are resolved given that waiting to resolve all scientific uncertainties before action is taken may very likely make it too late to prevent catastrophic climate change harms to millions of people around the world?
2. Do you deny that those who are most vulnerable to climate change’s harshest potential impacts have a right to participate in a decision about whether to wait to act to reduce the threat of climate change to them because of scientific uncertainty?
3. Given that mainstream climate change scientific view holds that the Earth could experience rapid non-linear climate change impacts which outstrip the ability of some people and nations to adapt, should this fact affect whether nations which emit high levels of ghgs should be able to use scientific uncertainty as an excuse for non-action on climate change?
4. What specific scientific references and sources do you rely upon to conclude that there is a reasonable scientific dispute about whether human actions are causing observable climate change and are you aware of the multiple “fingerprint” studies and “attribution” studies that very strongly point to human causation?
(Fingerprint studies draw conclusions about human causation that can be deduced from: (a) how the Earth warms in the upper and lower atmosphere, (b) warming in the oceans,(c) night-time vs day-time temperature increases,(d) energy escaping from the upper atmosphere versus energy trapped, (e) isotopes of CO2 in the atmosphere and coral that distinguish fossil CO2 from non-fossil CO2, (f) the height of the boundary between the lower and upper atmosphere, and (g) atmospheric oxygen levels decrease as CO2 levels increase. “Attribution” studies test whether the energy differences from those natural forces which have changed the Earth’s climate in the past such as changing radiation from the sun are capable of explaining observed temperature change.)
5. On what specific basis do you disregard the mainstream scientific view that holds that the Earth is warming, that the warming is mostly human caused, and that harsh impacts from warming are very likely under business-as-usual, conclusions supported by the Intergovernmental Panel on Climate Change, the United States Academy of Sciences and over a hundred of the most prestigious scientific organizations in the world whose membership includes scientists with expertise relevant to the science of climate change including the American Association for the Advancement of Science, the American Geophysical Union, the American Institute of Physics, the American Meteorological Society, the Royal Meteorological Society, and the Royal Society of the UK and according to the American Academy of Sciences 97 percent of scientists who actually do peer-reviewed research on climate change?
6. When you claim that a nation such as the United States which emits high levels of ghgs need not adopt climate change policies because adverse human-induced climate change impacts have not yet been proven, are you claiming that climate change skeptics have proven that human-induced climate change will not create harsh adverse impacts to the human health and the ecological systems of others on which their lives often depend and if so what is that proof?
7. Given that in ratifying the United Nations Framework Convention on Climate Change (UNFCCC) the United States and almost every country in the world in 1992 agreed under Article 3 of that treaty to not use scientific uncertainty as an excuse for postponing climate change policies, do you believe the United States is now free to ignore this promise by refusing to take action on climate change on the basis of scientific uncertainty?
(Article 3 states:)
The Parties should take precautionary measures to anticipate, prevent or minimize the causes of climate change and mitigate its adverse effects. Where there are threats of serious or irreversible damage, lack of full scientific certainty should not be used as a reason for postponing such measures, taking into account that policies and measures to deal with climate change should be cost-effective so as to ensure global benefits at the lowest possible cost
8. If a nation emitting high levels of ghgs refuses to reduce its emissions to its fair share of safe global emissions on the basis that there is too much scientific uncertainty to warrant action, if it turns out that human-induced climate change actually greatly harms the health and ecological systems on which life depends for tens of millions of others, should that nation be responsible for the harms that could have been avoided if preventative action had been taken earlier?
The World Resources Institute (WRI) has created a new very helpful website that allows visual comparisons of up to four nations at a time up and up to eight of 24 variables at a time relevant to determining what equity requires of nations in formulating their climate policies. The website is called Equity Tracker and is available at: http://cait2.wri.org/equity/
The above picture from the website demonstrates how one could visualize differences between nations on factors relevant to what equity requires of them and thereby understand why some nations must make much deeper cuts than others as a matter of equity and justice. This information could be very valuable in deepening citizen and government reflection on ethical, justice, and equity problems with national responses to climate change. As a matter of equity, for instance, the website help one quickly visualize why the United States must make deeper percentage cuts in its ghg emissions than India and the Democratic Republic of the Congo, not to mention China, for instance.
One minor criticism of the site is, however, in order. Although the website is very helpful to both help visualize and understand facts relevant to determinations of what equitable principles should guide national climate policy formation, particularly in regard to ghg emissions reduction targets, lamentably the site could be interpreted to leave the mistaken impression that equity could mean anything. In fact the site says that the meaning of equity “depends upon the lens through which one views it.” The site could be improved if it included a reference to the IPCC discussion in Chapters 3 and 4 of Working Group III’s recent report which, among other things, identifies ethical limitations of economic arguments about climate policies and only a limited number of considerations that should be considered in determining what equity means. For a summary of the IPCC conclusions on these issue see IPCC, Ethics, and Climate Change: Will IPCC’s Latest Report Transform How National Climate Change Policies Are Justified?. and Improving IPCC Working Group III’s Analysis on Climate Ethics and Equity, Second In A Series on this website.
The other idea one must understand to effectively criticize national ghg commitments is the policy implications of a carbon budget that must be maintained to limit warming to 2 degrees C. If a citizen understands the equity considerations and the extraordinary urgency of lowering global emissions to limit warming to 2 degrees C, then citizens can then effectively criticize their nation’s ghg emissions target. The following is one depiction of a carbon budget prepared by the Global Commons Institute with three different reductions pathways that make different assumptions about when global ghg emissions peak.
In the United States and in several developed countries including Australia and Canada, for instance, opponents of national commitments to reduce greenhouse gas (ghg) emissions frequently have made several arguments in opposition to proposed climate change policies. Most of these arguments have been of two types.
First, opponents of national climate policies have argued that there is insufficient scientific certainty about human causation of adverse climate impacts to warrant action because of the costs of reducing greenhouse gas (ghg) emissions might entail unnecessary expenditures if the mainstream scientific view on climate impacts turns out to be false.
Second proposed climate change policies are too costly. These cost arguments have taken several forms. They have included claims that the proposed ghg emissions reduction policies: (a) will unacceptably reduce national GDP, (b) will destroy jobs, (c) will destroy specific industries, (d) are not justified by cost-benefit analyses or other welfare maximization measurements, or (e) are just too costly.
Another very common argument made in opposition to national ghg emissions reductions policies that implicitly rests on claims of excessive costs is the frequent claim that it is unfair to the United States, or some other country, to be required to reduce its emissions as long as another country, e.g. China or India, is not willing to reduce its ghg emissions in similar ways.
This paper will examine whether a nation may make its willingness to reduce its ghg emissions contingent on what other nations do through an ethical lens after very briefly examining ethical problems with other cost justifications for a nation’s unwillingness to reduce it ghg emissions.
II. Ethical Problems with Cost Justifications for a Nation’s Unwillingness to Reduce its GHG Emissions.
As a matter of ethics all nations have clear duties reduce their ghg emissions to their fair share of global emissions because nations have ethical duties to not harm other people and nations. These ethical duties can be derived both from various ethical theories and international law. For instance, as an example from climate law, under the United Nations Framework Convention on Climate Change, nations agreed that nations have the:
“responsibility to ensure that activities within their jurisdiction or control do not cause damage to the environment of other States or of areas beyond the limits of national jurisdiction.” (UNFCCC, Preamble)
In regard to the ethical basis for concluding that nations have duties to not harm others a recent conclusion of the Intergovernmental Panel on Climate Change (IPCC) is relevant
Common sense ethics (and legal practice) hold persons responsible for harms or risks they knowingly impose or could have reasonably foreseen, and in certain cases, regardless of whether they could have been foreseen. (IPCC, 2014, AR5, WG III, Ch. 4, pg. 49)
Cost arguments are almost always arguments about self-interest that usually ignore duties and responsibilities to others.
Whether a nation or individual should act to prevent climate change is a matter of justice, not simply a matter of economic efficiency, national welfare maximization, or economic self-interest alone. This is so because some governments and individuals more than others are more responsible for climate change because they have much higher emissions of ghg in total tons, per capita levels, and historical contributions to elevated atmospheric ghg concentrations. Yet each nation must reduce its ghg emissions to its fair share of safe global emissions because it has a duty to not harm others and some of the poorest people in the world who have done almost nothing to cause climate change are the most vulnerable to climate change. These people will suffer the most if governments and individuals refuse to reduce their emissions based upon “efficiency” or “welfare maximization” or national costs considerations alone. In addition, those most vulnerable to climate change have not consented to be harmed because costs to polluters of reducing their emissions are high.
In regard to these ethical limits of costs arguments, the Intergovernmental Panel on Climate Change (IPCC), Working Group III report recently confirmed these conclusions when it stated:
“Efficiency” and “welfare maximization” justifications unjustly sacrifice vulnerable people to the economic prosperity of high emitting nations and individuals. The methods of economics are limited in what they can do. …They are suited to measuring and aggregating the wellbeing of humans, but not in taking account of justice and rights. (IPCC, 2014, AR5, WG III, Ch. 3, pg. 24)
What ethical considerations can economics and justice can economics cover satisfactorily? Since the methods of economics are concerned with value, they do not take account of justice and rights in general. (IPCC, 2014.AR5, WG III, Ch. 3, pg. 25)
Economics is not well suited to taking into account many other aspects of justice, including compensatory justice. (IPCC,2014, AR5, WG III, Ch. 3,pg. 24)
Yet, of course, what is any nation’s fair share of safe global emissions is a matter of distributive justice about which reasonable people may disagree. In fact, some very low emitting nation’s and people may be able to argue that they need not yet cut their ghg emissions because they have not yet exceeded their fair share of safe global emissions. Yet almost all nations are without doubt emitting at levels above their fair share of safe global emissions because total global emissions must be cut by as much as 95 percent by 2050 to prevent dangerous climate change. This is particularly true for all developed nations such as the United States which have very high per capita and historical emissions.
Although reasonable people may disagree on exactly what any nation’s fair share of safe global emissions, this does not mean that any national articulation of what is fair passes ethical scrutiny.
In this regard, the recent IPCC report also agreed when it said:
There is a basic set of shared ethical principles and precedents that apply to the climate problem…[and] such principles… can put bounds on the plausible interpretation of equity in the burden sharing context…[and] are important in establishing what may be reasonably required of different actors. (IPCC, 2014, AR5, WG III, Ch. 4, pg. 48)
The recent IPPC report identified the considerations that have been discussed in the ethics literature as being relevant for determining what fairness requires in allocating national responsibility for national ghg emissions reductions. They include; (a) responsibility for causing the climate problem, that is historical levels of emissions, (b) capacity or ability to pay for ghg emissions reductions, (c) equality or giving each human being an equal right to use the atmosphere as a sink for ghg emissions, and (d) the right to development a concept which is usually understood to give poorer nations an exception from the obligations to reduce ghg emissions so that they can meet basic needs. (IPCC, 2014, AR5, WGIII pp 52-56)
And so ethics requires each nation to reduce its emissions to its fair share of safe global emissions where what is fair must be based upon morally justifiable reasons for allocating national ghg emissions reductions’ burdens yet in determining what are morally relevant factors there are only a limited number of considerations that are recognized by ethicists to be morally relevant. None of these considerations are costs to reduce ghg emissions of high-emitting nations or people.
III. The Ethics Of One Nation Making Its GHG Reductions’ Commitment Contingent Upon Other Nations Doing the Same.
All nations that are exceeding their fair share of safe global emissions have a duty to immediately reduce their emissions to their fair share of safe global emissions without regard to what other nations do. This is so because climate change obligations are a matter of global justice, not national interest alone, and justice requires all nations to reduce their ghg emissions to levels that are distributively just and sufficient in magnitude to in combination with the reductions of other nations to prevent dangerous climate change.
The duty to cease activities that harm others is not diminished if others who are contributing to the harm fail to cease their harmful behavior. This is so because no nation or person has a right to continue destructive behavior on the basis that others who are contributing to the harm of others have not ceased their destructive behavior.
For example, it would be absurd for one of two factories that are poisoning people downstream by their discharges of toxic substances to argue that it has no obligation to reduce toxic discharges until the other factory agrees to reduce its toxic discharges. One of two persons beating up an innocent victim cannot defend his actions on the basis that he had no duty to stop the beating as long as the other person continued to assault the victim.
Yet climate change is an analogous problem because some very high-emitting countries are largely causing great harm to very low-emitting poor countries who can do little by themselves to protect themselves from the great harm. Those poor nations who are the most vulnerable victims of climate change are appropriately dismissive of arguments from high-emitting countries that justify their unwillingness to change the status quo on the basis that other high-emitting countries have not reduced their emissions.
May the United States, or other nation, refuse to reduce its emissions to its fair share of safe global emissions as long as another nation, for instance China, will not act accordingly? As a matter of ethics, for reasons stated above, no nation may refuse to reduce its emissions to its fair share of safe global emissions levels on the basis what other nations do.
May China, or other developing nation refuse to reduce its ghg emissions on the basis that another developed nation has refused to act according to levels required of them?
Any nation’s obligation, including China’s, to reduce its ghg emissions is terminated only when its ghg emission levels are below levels required by fair global allocations that will prevent dangerous climate change. Although even if a nation is emitting at levels below its fair share of safe global emissions an argument can be made that any nation that could reduce its ghg emissions further should do so to avoid catastrophic harm to others. This so because climate change is violating the human rights of poor people around the world and human rights theory requires governments that have the ability to prevent human rights violations should do so even if they are not at fault.
Without doubt as a matter of ethics, all nations, at a minimum, have a duty to keep ghg emissions below their fair share of safe global emissions independent of what other nations are doing.
Although as we have seen what fairness requires is a matter about which different ethical theories might reach different conclusions, a claim by almost any nation in the top 80 percent of global per capita emissions that it is already below its fair share of safe global emissions is highly unlikely to pass scrutiny on the basis of any conceivable ethically theory.
And so, the United States, along with other high-emitting nations, must act now because it cannot make a credible case that US ghg emissions are already below the US’s fair share of safe global emissions levels. This is true because most mainstream scientists have concluded that the world must reduce total global emissions by as much as 90 to 80 percent below existing levels to stabilize GHG atmospheric concentrations at minimally safe atmospheric ghg concentrations and most developed nations and China are very high emitters in both historical and per capita emissions. Therefore what is a fair reduction levels for these high-emitting countries will need to be reductions at greater levels than required of the entire world.
Yet, some very low-emitting developing countries might be able to make a credible case that their current ghg emissions levels are still below their fair share of safe global emissions. And so although some poor low-emitting nations might be able to substantiate a claim that their existing ghg emissions levels don’t yet trigger immediate emissions reductions obligations, the United States and all developed nations and China are not members of this group. For this reason, the US, developed nations, and even high-emitting developing nations have a duty to reduce their ghg emissions to their fair share of safe global emissions and this obligation is an international responsibility that is unaffected by the actions of other nations.
In addition, it is ethically problematic for the United States or another developed nation to assert that other nations must reduce their emissions to levels commensurate with US reductions. In fact, for the United States to make any claim on any other nation that it must reduce its emissions in the same amount as the US emissions reductions, it would have to make the case that the nation was already exceeding its fair share of safe global emissions coupled with the claim that to achieve fair emissions levels the nation would have to reduce emissions to the same level committed to by the United States. But even then, as we have seen, the United States could not makes its emissions reduction commitments contingent on what another nation did.
A variation of the argument that a country like the United States need not reduce its ghg emissions unless other nations do so is the claim that it will not make a difference in the harms experienced by those vulnerable to climate change if the United States reduces its ghg emissions and others fail to do so. Yet this claim is not factually true. Any nation which is emitting ghg emissions above its fair share is contributing to the harms of people and nations who are harmed by climate change. Although it is obviously true that unless all nations reduce their emissions to their fair share of safe global ghg emissions, some nations and people will be harmed by climate change, yet these harms will be worse so long as each nation refuses to reduce its emissions to its fair share of safe global emissions. Although the most damaging harms may be caused by those nations who refuse to reduce their ghg emissions to their fair share, all nations emitting ghgs above their fair share make the harms worse.
Countries like the United States are not being asked to reduce China’s fair share of safe global emissions, they are only expected to reduce the US ghg emissions to the US fair share of safe global emissions. For this reason, also, the US may not as a matter of ethics fail to reduce its ghg emissions to its fair share of safe global emissions because other countries have failed to do so.
In conclusion, nations have an ethical responsibility to reduce ghg emissions that harm others for as long as they are exceeding their fair share of safe global emissions. This duty exists regardless of efforts undertaken by other nations to reduce their ghg emissions.
This is the second in a three part series examining the ethical and justice issues discussed by the IPCC Working Group III in its 5th Assessment Report (AR5) . In the first entry in this series we concluded that although the recent IPCC AR 5 Working Group III report is laudable improvement over prior IPCC reports in regard to identifying ethical and equity issues that should be considered in developing climate change policy, some criticisms are also warranted of how IPCC has articulated the significance and implications of the ethical, justice, and equity principles that should guide nations in developing climate change policies.
In short, we will argue improvement is possible in how IPCC deals with ethics, justice, and equity issues entailed by climate change policy-making despite very significant improvements on these matters in the AR5 report compared to prior IPCC reports.
In this entry we will examine several preliminary ethical and justice issues raised by the new IPCC Working Group III Chapter 3, on Social, Economic, and Ethical Concepts. The last entry will continue the examination Chapter 3 and then turn to Chapter 4 on Sustainable Development and Equity.
As a preliminary matter, one of the challenges that IPCC faces in its mandate on of ethics and justice issues relevant to climate change policy-making is that it is not IPCC’s role to be prescriptive in deciding what governments should do. It’s mandate is to synthesize the extant social-economic and scientific literature for policy-makers. In this regard, the IPCC chapter on ethics said expressly:
This chapter does not attempt to answer ethical questions, but rather provides policymakers with the tools (concepts, principles, arguments, and methods) to make decisions. (IPCC, 2014.WG III, Ch. 3, pg. 10)
And so it is not IPCC’s role to do ethical analyses of policy issues that raise ethical questions. IPCC can, however, distinguish between prescriptive and descriptive questions that arise in relevant socio-economic literature about climate policy-making, identify important ethical and justice issues that arise in this literature, where there is a consensus on ethics and justice issues in the relevant literature describe the consensus position, where there is no consensus on ethical and justice issues describe the range of reasonable views on these issues, and identify hard and soft law legal principles relevant to how governments should resolve ethical and justice issues that must be faced by policy-makers.
There are several subjects in climate change policy-making which raise important ethical and justice issues. They include policy judgements about:
how much warming will be tolerated, a matter which is implicit but rarely identified when nations make ghg emissions reduction commitments,
any nation’s fair share of safe global emissions, matters which are referred to by the IPCC usually as burden-sharing or effort-sharing considerations and a matter taken up in chapter 4 of IPCC, Working Group III chapter on sustainability and equity,
any nation’s responsibility for funding reasonable adaptation and compensation for losses and damages for those who are harmed by climate change,
when a nation is responsible for its ghg emissions given differences in historical and per capita emissions among nations,
responsibility for funding technology transfer to poor nations,
how to evaluate the effects on and responsibilities to others of climate change technologies that are adopted in response to the threat of climate change, including such technologies as geo-engineering or nuclear power, for instance,
who has a right to participate in climate change policy-making, a topic usually referred to under the topic of procedural justice,
the policy implications of human rights violations caused by climate change,
the responsibility of not only nations but subnational governments, entities, organizations, and individuals for climate change,
when economic analyses of climate change policy options can prescribe or limit national duties or obligations to respond to the threat of climate change,
ethical and justice implications of decisions must be made in the face of scientific uncertainty,
whether action or non-action of other nations is relevant to any nation’s responsibility for climate change,
how to spend limited funds on climate change adaptation,
when politicians may rely on their own uninformed opinion about climate change science,
who is responsible for climate refugees and what their responsibilities are.
On some of these issues, the recent IPCC report included a good summary of the extant ethical literature, on other issues important gaps in IPCC’s analysis can be identified, and lastly on a few of these issues, IPCC Working Group III is silent. IPCC reports cannot be expected to be exhaustive on these matters and therefore gaps and omissions in the IPCC reports in regard to ethics and justice issues relevant to policy-making is not necessarily a criticism of IPCC and is here pointed out only for future consideration. In fact, IPCC’s work on the ethical limits of economic arguments is a particularly important contribution to the global climate change debate. What is worthy of criticism, however, is if IPCC’s conclusions on guidance for policy-makers is misleading on ethics and justice issues.
II. Ethical Issues Raised by Economic Arguments About Climate Policy
Perhaps the most important practical ethical and justice issues raised by Working Group III’s work on ethics is its conclusions on the ethical and justice limitations of economic analyses of climate change policy options. This topic is enormously practically important because nations and others who argue against proposed climate change policies usually rely on various economic arguments which often completely ignore the ethical and justice limitations of these arguments (In the case of the United States, see Brown, 2012.) Because most citizens and policy-makers have not been trained in spotting ethically dubious claims that are often hidden in what appear at first glance to be “value-neutral” economic arguments, IPCC’s acknowledgement of the ethical limitations of economic arguments is vitally important. It is also practically important because the first four IPCC reports, although not completely ignoring all ethical and justice problems with economic arguments about climate change policies, failed to examine the vast majority of ethical problems with economic arguments against climate change policies while making economic analyses of climate change policies the primary focus of Working Group III’s work thereby leaving the strong impression that economic analyses, including but not limited to cost-benefit analyses, is the preferred way to evaluate the sufficiency of proposed climate change policies. On this matter, the AR5 report has made important clarifications.
The AR5 III report included a section on this very issue entitled: Economics, Rights, and Dutieswhich we reproduce here it its entirety because of its importance to this discussion, followed by comments in bold italics:
Economics can measure and aggregate human wellbeing, but Sections 3.2, 3.3 and 3.4 explain that wellbeing may be only one of several criteria for choosing among alternative mitigation policies.
Other ethical considerations are not reflected in economic valuations, and those considerations may be extremely important for particular decisions that have to be made. For example, some have contended that countries that have emitted a great deal of GHG in the past owe restitution to countries that have been harmed by their emissions. If so, this is an important consideration in determining how much finance rich countries should provide to poorer countries to help with their mitigation efforts. It suggests that economics alone cannot be used to determine who should bear the burden of mitigation.
What ethical considerations can economics cover satisfactorily? Since the methods of economics are concerned with value, they do not take into account of justice and rights in general. However, distributive justice can be accommodated within economics, because it can be understood as a value: specifically the value of equality. The theory of fairness within economics (Fleurbaey, 2008) is an account of distributive justice. It assumes that the level of distributive justice within a society is a function of the wellbeings of individuals, which means it can be reflected in the aggregation of wellbeing. In particular, it may be measured by the degree of inequality in wellbeing, using one of the standard measures of inequality such as the Gini coefficient (Gini, 1912), as discussed in the previous section. The Atkinson measure of inequality (Atkinson, 1970) is based on an additively separable social welfare function (SWF), and is therefore particularly appropriate for representing the prioritarian theory described in Section 3.4.6 . Furthermore, distributive justice can be reflected in weights incorporated into economic evaluations as Section 3.6 explains.
Simply identifying the level of inequality using the Gini Index does not assure that the harms and benefits of climate change policies will be distributed justly. For that a theory of just distribution is needed. The Gini index is also at such a level of abstraction that it is very difficult to use it as a way of thinking about the justice obligations to those most vulnerable to climate change. Even if there is strong economic equality in a nation measured by the Gini index, one cannot conclude that climate change policies are distributively just.
Economics is not well suited to taking into account many other aspects of justice, including compensatory justice. For example, a CBA might not show the drowning of a Pacific island as a big loss, since the island has few inhabitants and relatively little economic activity. It might conclude that more good would be done in total by allowing the island to drown: the cost of the radical action that would be required to save the island by mitigating climate change globally would be much greater than the benefit of saving the island. This might be the correct conclusion in terms of overall aggregation of costs and benefits. But the island’s inhabitants might have a right not to have their homes and livelihoods destroyed as a result of the GHG emissions of richer nations far away. If that is so, their right may override the conclusions of CBA. It may give those nations who emit GHG a duty to protect the people who suffer from it, or at least to make restitution to them for any harms they suffer.
Even in areas where the methods of economics can be applied in principle, they cannot be accepted without question (Jamieson, 1992; Sagoff, 2008). Particular simplifying assumptions are always required, as shown throughout this chapter. These assumptions are not always accurate or appropriate, and decision‐makers need to keep in mind the resulting limitations of the economic analyses. For example, climate change will shorten many people’s lives. This harm may in principle be included within a CBA, but it remains highly contentious how that should be done. Another problem is that, because economics can provide concrete, quantitative estimates of some but not all values, less quantifiable considerations may receive less attention than they deserve.
This discussion does not adequately capture serious ethical problems with translating all values into monetary units measured by willingness to pay or its surrogates nor that such transformation may greatly distort ethical obligations to do no harm into changes in commodity value.
The extraordinary scope and scale of climate change raises particular difficulties for economic methods (Stern, forthcoming). First, many of the common methods of valuation in economics are best designed for marginal changes, whereas some of the impacts of climate change and efforts at mitigation are not marginal (Howarth and Norgaard, 1992). Second, the very long time scale of climate change makes the discount rate crucial at the same time as it makes it highly controversial (see Section 3.6.2 ). Third, the scope of the problem means it encompasses the world’s extremes of wealth and poverty, so questions of distribution become especially important and especially difficult. Fourth, measuring non‐market values—such as the existence of species, natural environments, or traditional ways of life of local societies—is fraught with difficulty. Fifth, the uncertainty that surrounds climate change is very great. It includes the likelihood of irreversible changes to societies and to nature, and even a small chance of catastrophe. This degree of uncertainty sets special problems for economics. (Nelson, 2013) (IPCC, 2014.WG III, Ch. 3, pg. 12-13)
Again this discussion does not adequately describe the ethical problems with economic determinations of all values. In fact it leaves the impression that if non-market values can be discovered the problems of transforming all values to commodity values are adequately dealt with.
Chapter 3, also includes additional statements about the ethical limits of economic reasoning sprinkled throughout the chapter. They include:
1. Most normative analyses of solutions to the climate problem implicitly involve contestable ethical assumptions.(IPCC, 2014. WG III, Ch. 3, pg.10)
2. However, the methods of economics are limited in what they can do. They can be based on ethical principles, as Section 3.6 explains. But they cannot take account of every ethical principle. They are suited to measuring and aggregating the wellbeing of humans, but not to taking account of justice and rights (with the exception of distributive justice − see below), or other values apart from human wellbeing. (IPCC, 2014.WG III, Ch. 3, pg. 24)
And so Chapter 3 of the IPCC report contains a number or clear assertions about the ethical limitations of economic arguments. However there are important gaps missing from this analysis. Also several sections of Chapter 3 that can be interpreted as claims that policy makers are free to choose economic reasoning as justification for climate policies. That is, some of the text reads as if a policy-maker is free to choose whether to base policy on economic or ethical and justice considerations, choosing between these two ways of evaluation is simply an option. Some of these provisions follow with responses in italics
Chapter 3 page 6 says:
Many different analytic methods are available for evaluating policies. Methods may be quantitative (for example, cost‐benefit analysis, integrated assessment modeling, and multi‐criteria analysis) or qualitative (for example, sociological and participatory approaches). However, no single best method can provide a comprehensive analysis of policies. A mix of methods is often needed to understand the broad effects, attributes, trade‐offs, and complexities of policy choices; moreover, policies often address multiple objectives (IPCC, 2014.WG III, Ch. 3, pg. 6)
Although economic analyses can provide policy-makers with valuable information such as which technologies will achieve ethically determined goals at lowest cost, thereby providing criteria for making remedies cost-effective, there are serious ethical problems with cost-benefit analyses used prescriptively to set emissions reductions targets. Some of these are alluded to in IPCC Chapters 3 and 4, others are not acknowledged. Because of the prevalence of cost-benefit justifications for climate change policies, future IPCC reports could make a contribution by identifying all of the ethical issues raised by cost-benefit analyses.
Any decision about climate change is likely to promote some values and damage others. These may be values of very different sorts. In decision making, different values must therefore be put together or balanced against each other. (IPCC, 2014. WG III, Ch. 3, pg. 6)
This provision can be understood as condoning a consequentialist approach to climate policy that fails to acknowledge deontological limits. Since when any nation makes policy on climate change it affects poor people and vulnerable nations around the world, there are serious procedural justice issues which go unacknowledged in this section and, for the most part, all throughout Chapter 3. Nowhere does the chapter acknowledge that when a climate policy is under development at the national level, nations have no right to compare costs to them of implementing policies with the harms to others that have not consented to the method of valuation being used to determine quantitative value.
Ideally, emissions should be reduced in each place to just the extent that makes the marginal cost of further reductions the same everywhere. One way of achieving this result is to have a carbon price that is uniform across the world; or it might be approximated by a mix of policy instruments (see Section 3.8 ). (IPCC, 2014.WG III, Ch. 3, pg. 26)
This statement fails to acknowledge that emissions reductions amounts should be different in different places according to well accepted principles of distributive justice. Although other sections of the chapter acknowledge that responsibility for climate change is a matter of distributive justice, this section and others leave the impression that climate policy can be based upon economic efficiency grounds alone. The way to cure this problem is to continue to reference other sections that recognize ethical limits in setting policy on the basis of efficiency.
(IPCC, 2014.WG III, Ch. 3, pg. 6)
Since, for efficiency, mitigation should take place where it is cheapest, emissions of GHG should be reduced in many developing countries, as well as in rich ones. However, it does not follow that mitigation must be paid for by those developing countries; rich countries may pay for mitigation that takes place in poor countries. Financial flows between countries make it possible to separate the question of where mitigation should take place from the question of who should pay for it. Because mitigating climate change demands very large‐scale action, if put in place these transfers might become a significant factor in the international distribution of wealth. Provided appropriate financial transfers are made, the question of where mitigation should take place is largely a matter for the economic theory of efficiency, tempered by ethical considerations. But the distribution of wealth is amatter of justice among countries, and a major issue in the politics of climate change (Stanton, 2011). It is partly a matter of distributive justice, which economics can take into account, but compensatory justice may also be involved, which is an issue for ethics. (Section 3.3).(IPCC, 2014.WG III, Ch. 3, pg. 26)
There are a host of potential ethical problems with mitigation taking place in one part of the world to satisfy the ethical obligations of a nation in another part of the world which is emitting above its fair share of safe global emissions that are not mentioned in this article. Included in these problems are:
Environmental Sufficiency. There are many technical challenges in assuring that a project in one part of the world that seeks to reduce ghg by an amount that otherwise would be required of a polluter will actually succeed in achieving the reductions particularly when the method of reduction is reliant on biological removal of carbon.
Permanence. Many proposed projects for reducing carbon in one part of the world to offset reductions ethically required in another part of the world raise serious questions about whether the carbon reduced by the project will stay out of the atmosphere forever, a requirement that is required to achieve the environmental equivalence to ghg emissions reductions that would be achieved at the source.
Leakage. Many proposed projects used to offset emissions reductions of high-emitters raise serious questions about whether carbon reduced by a project at one location will result in actual reductions in emissions because the activity which is the subject of the offset is resumed at another location.
Additionality. A project that is proposed in another part of the world to offset emissions reductions of a high-emitting entity may not be environmentally effective if the project would have happened anyway for other reasons.
Allowing Delay In Investing In New Technology. The ability to rely on a cheaper emissions reductions project in another part of the world as a substitute of reducing emissions creates an excuse for high-emitting entities to delay investment in technologies that will reduce the pollution load. This may create a practical problem when emissions reductions obligations are tightened in the future.
Chapter 3 also treats other important ethical issues that arise in climate change policy formation. They include:
3.3 Justice, equity and responsibility,
3.3.1 Causal and moral responsibility
3.3.2 Intergenerational justice and rights of future people
3.3.4 Historical responsibility and distributive justice
3.3.5 Intra‐generational justice: compensatory justice and historical responsibility
3.3.6 Legal concepts of historical responsibility
3.3.7 Geoengineering, ethics, and justice
3.4 Values and wellbeing
3.4.1 Non‐human values
3.4.2 Cultural and social values
3.4.4 Aggregation of wellbeing
3.4.5 Lifetime wellbeing
3.4.6 Social welfare functions
3.4.7 Valuing population
III. Some Additional Gaps In Chapter 3
Some of the gaps in Chapter 3 on ethical issues raised by climate change policy-making include: (1) ethics of decision-making in the face of scientific uncertainty, (2) whether action or non-action of other nations affects a nation’s responsibility for climate change, (3) how to spend limited funds on climate change adaptation, (4) when politicians may rely on their own uninformed opinion about climate change science, and (5) who is responsible to for climate refugees and what are their responsibilities.
The last entry in this series will continue the analyses of IPCC Chapter 3 on Social, Economic, and Ethical Concepts and Chapter 4 on Sustainability and Equity.
Brown, 2012, Navigating the Perfect Moral Storm: Climate Change Ethics In Light of a Thirty-Five Year Debate, Routledge-Earthscan, 2012
On Monday June 2, the US press began to shine a spotlight on the predictable political warfare breaking out over the Obama administration’s new proposed climate change rules. Yet, there are at least four crucial facts about any US response to climate change that continue to be largely ignored by the US media coverage of this food fight. They include: (1) a 35 year US delay on climate action has made the problem extraordinarily challenging to solve, (2) US greenhouse gas (ghg) emissions are more than any country responsible for rise in atmospheric concentrations to present dangerous levels, (3) US ghg emissions not only threaten the US with climate disruption but endanger many of the poorest people around the world, (4) the Obama administration’s pledge to reduce ghg emissions is far short of the US fair share of safe global emissions.
For over 35 years the US Academy of Sciences has been warning Americans about the threat of climate change. In 1977, Robert M. White, the head of the National Oceanic and Atmospheric Administration, wrote a report for the US Academy that concluded that CO2 released during the burning of fossil fuel could have consequences for climate that pose a considerable threat to future society. By the late 1980s, scientists around the world agreed that action by the world governments was needed to avoid the threat of climate change. In June in 1988, a conference of the world’s governments and scientists proposed that developed nations reduce their emissions by 20% by 2000. The US, virtually standing alone among developed countries, refused to commit to any emissions reductions targets citing scientific uncertainty and cost to the US economy. The 35 year delay in taking significant action has made the task of avoiding dangerous climate change increasingly more challenging. In fact, most climate scientists are alarmed that the world is now running out of time to prevent very dangerous climate change. The 35 year delay has now created a need for extraordinarily steep ghg reductions worldwide. The longer the world waits, the more difficult and costly it will be to avoid dangerous climate change.
Opponents of US action on climate change loudly now argue that the US should not act until China commits to acts correspondingly siting that China is now the world’s largest emitter of ghg. Yet they conveniently ignore the fact that the United States is a much larger emitter of ghgs than China in per capita and historical emissions. The atmosphere is like a bathtub, it has a limited volume, and because CO2 is well mixed in the atmosphere it makes little difference where the emissions come from; the bathtub continues to fill. The US more than any other country has been responsible for filling the atmospheric bathtub with ghgs above levels that existed before the beginning of the industrial revolution to current dangerous levels. Given there is limited atmospheric space left before ghg concentrations exceed very dangerous levels, the international community expects the United States to reduce its emissions to its fair share of safe global emissions, it is not asking American to reduce China’s share.
The political fight in the United States often exclusively has focused on climate harms to the United States if it does not take climate action compared to the costs to the US of taking action. Such a framing ignores that it is tens of millions of poor people around the world who will be most harmed by climate change if high-emitting nations fail to reduce their emissions to their fair share 0f safe global emissions. For this reason, climate change raises civilization challenging questions of justice and fairness, a feature of climate change that the US press is largely ignoring while it focuses on harms and benefits to the United States alone. Climate change creates US obligations to poor people and places around the world that are most at risk.
In 2009, President Obama promised the world that the US would strive to reduce its ghg emissions by 17% below 2005 emissions by 2020. He did this knowing that the United States would need to adopt additional policies to achieve this very modest goal. Because the US Congress has refused to act, the Obama administration proposed the regulation this week that has triggered the political firestorm. Missing from the coverage of the proposed regulations, is that the Obama pledge on ghg emissions reductions falls far short of any reasonable judgment about what the US fair share of safe global emissions is. This is so because to have any reasonable hope of preventing dangerous climate change, the entire world must reduce its emissions by much greater amounts than the US 2009 commitment and the United States is at the high-end of national historical and per capita emissions. To having any hope of avoiding dangerous climate change the US and other high-emitting nations will need to reduce their emissions at much greater rates than the average for the rest of the world. Basic justice requires this.
Editor’s note: The following entry is by a guest blogger Sunita Narain who writes widely on justice issues and for the Business Standard in India. This peace is a reflection on climate change policy in the United States after the recent climate change national assessment of climate change impacts on the United States was issued in May. Although it is before the new Obama administration regulations that were issued this Monday, June 2nd, that proposed to reduc ghg emissions by 30 % below 2005 by 2030 for coal fired power plants. As we will explain in a future entry, the US commitments is still far short of what equity and justice would require of the United States despite reasonable disagreements on which equity framework should be followed by high-emitting nations. We look forward to Ms Narain’s reflections and others on how the most recent proposed US EPA regulations comport with justice Notice of rule-making was issued on Monday, June 2, 2014, This article formerly was published in the Business Standard.
Sunita Narain: Change of climate in the US
Climate change has a surprising new follower: the president of the United States. The US government has been the biggest hurdle in climate change negotiations. Since discussions began on the issue in the early 1990s, the US has stymied all efforts towards an effective and fair deal. It has blocked action by arguing that countries like China and India must first do more. Worse, successive governments have even denied that the threat from a changing climate is real, let alone urgent. US President Barack Obama, who came to power in his first term with the promise to deal with climate change, was noticeably coy about the issue in recent years.
However, in May this year, the US government released its National Climate Assessment, which puts together carefully peer-reviewed scientific information on the impact of climate change in the US. It makes clear that even the US is not immune to the dangers of climate change. In fact, many trends are visible and the country is already hurting.
It is important to understand what this assessment concludes and why its findings are important for the rest of the world. One, it makes clear that the increase in temperature is now established; the rise in temperature is the highest in the poles, where snow and ice cover has decreased. As the atmosphere warms, it holds more water, which leads to more precipitation. Add to this the fact that the incidence of extreme heat and heavy precipitation is increasing – more heat and more rain. This makes for a deadly combination.
In the US, the incidence of heatwave has increased. In 2011 and 2012, the number of heatwaves was almost triple the long-term average. The assessment also finds that in areas where precipitation has not gone down, droughts occur. The reason is that higher temperatures lead to increased rates of evaporation and loss of soil moisture. In Texas in 2011 and then again in large parts of the Midwest in 2012, prolonged periods of high temperatures led to severe droughts.
In addition, now it does not just rain but pours. The heaviest rainfall events have become more frequent. Moreover, the amount of precipitation on the heavy rainfall days has also increased. Many parts of the country have already seen flooding, and the assessment is that these risks are significant in the future. This is combined with the fact that the intensity, frequency, duration and the number of strongest (category four and five) storms and hurricanes have increased since the 1980s, the period for which high-quality data are available.
Therefore, the news is not good for even a rich and temperate country like the US. For a long time, there was an unwritten agreement that climate change would benefit such countries. It was believed that they would become warmer, with the result that crop-growing periods would increase – which, in turn, would benefit their economies. The National Climate Assessment makes it clear that even if specific regions benefit from climate change, this will not be sufficient or durable. The net result will be economic disruption and disaster.
The other welcome change in the report is its clear assertion – something that needed to be stated bluntly to the American people – that climate change is caused by human activity. It cannot be dismissed any more as natural weather variability. Not only has there been an unprecedented build-up in the atmosphere of greenhouse gases resulting from the use of fossil fuels, fingerprinting studies can also attribute observed climate change to particular causes. Even as the stratosphere – the higher atmospheric layer – is cooling, the Earth’s surface and lower atmosphere are warming. This is clearly the result of an increase in heat-trapping gases released from fossil fuels that countries burn to drive economic growth.
The message is clear: the time for complacency is over. The gases in the atmosphere have hit dangerous levels, which is hurting the US economy. The effort must include adapting, and building flood- and drought-resistant agriculture and infrastructure. However, this won’t add up to much unless emissions from burning fossil fuels are cut fast and drastically.
This is where the report is the weakest. It says the current US contribution to annual global emissions is 18 per cent, but accepts that the country’s contribution to cumulative emissions is much higher. Importantly, it also accepts that it is this stock of emissions that determines the extent of global climate change. Till now, the US position on historical emissions has been a stumbling block in negotiations.
The question is: what needs to be done? The US still does not have a plan to cut its emissions based on its contribution to the problem. Its stated voluntary target is to reduce emissions by 17 per cent over the 2005 levels. This is too little, too late – in fact, meaningless.
For the moment, we should accept that the elephant in the room has been acknowledged. This itself should lead to change.
All nations, when they set national ghg emissions reductions targets, are implicitly taking a position on the following two civilization challenging ethical issues. The international community should require that all nations explicitly explain their positions on these two issues.
Every national ghg emissions reduction target is implicitly a position on the two above civilization challenging ethical issues, although nations almost never identify the positions they have taken on these issues nor acknowledge that these are ethical matters. These issues are: (1) a ghg atmospheric concentration stabilization goal, and (2) the nation’s fair share of global ghg emissions that will achieve the atmospheric goal. This picture seeks to help citizens understand these issues. Both of these issues are essentially ethical and moral issues. This is so because in taking a position on an ghg atmospheric stabilization goal, a nation is determining how much harm it is willing to inflict on hundreds of millions of poor vulnerable people around the world and the ecological systems on which life depends. Also, in specifying a ghg emissions reduction amount, the nation is also taking a position on what distributive justice requires of it to reduce global ghg emissions to safe levels.
Governments should be required to explain their positions on these issues because every national ghg emissions reduction target is implicitly a position on these ethical questions.
The National Academy of Sciences and its British counterpart, the Royal Society, have published Climate Change: Evidence and Causes, a very easy to understand primer on the science of greenhouse-driven global warming. Although there is not a lot new in this report as a matter of science, it makes the strong scientific consensus on human-induced climate change that has existed for some time clearer and more accessible for non-scientists particularly on the major issues that need to be understood by policy-makers and interested citizens. The report is written in simple language and filled with pictures and graphs which illustrate why almost all mainstream scientists actually engaged in climate change science are virtually certain that human activity is causing very dangerous climate change.
This report is ethically significant because:
a. It is a report of two of the most prestigious scientific institutions in the world, namely US National Academy of Sciences and the British Royal Society. Because of the prestige of both of the institutions writing this report, those opposing actual climate change have an ethical duty to acknowledge that the scientific basis supporting action on climate change is entitled to respect. They cannot reasonably claim that there is no strong scientific basis for policy action on climate change or even worse that climate change science is a “hoax.” Which institutions have made claims that humans are engaged in dangerous behavior has ethical significance. If, for instance, someone is told by an expert in toxicology that chemicals he or she is discharging into a water supply will kill people, he or she has more of an ethical duty to stop discharging the chemicals until the issue of toxicology issues are resolved than they would if the claim about poisoning came from a religious leader or a tax accountant. When claims about danger are made by world-class scientific experts, as a matter of ethics, the burden of proof shifts to those potentially harming others to show that their behavior is not dangerous.
Skepticism in climate science should still be encouraged, but skeptics must play by the rules of science including: (a) subjecting all claims contradicting the mainstream scientific view on climate change to peer-review, (b) subjecting claims that humans are not causing dangerous climate impacts to review by scientific institutions that have sufficient broad interdisciplinary expertise among its members to review such claims against all the contrary evidence from all relevant scientific disciplines, and (c) acknowledging all the contradictory evidence. Given the enormity of harms to citizens around the world and future generations predicted by mainstream scientists, those who seek to undermine proposed climate change policies on scientific certainty grounds should be understood to have the burden of proof to show by high levels of proof that human-induced climate change is not dangerous.
b. The report includes clear explanations of the scientific evidence in regard to specific justifications for not taking action on climate change very frequently made by those who oppose climate change policies. These justifications and responses to them include, for instance:
Scientists don’t know that recent climate change is largely caused by human activities?
Scientists know that recent climate change is largely caused by human activities from an understanding of basic physics, comparing observations with models, and fingerprinting the detailed patterns of climate change caused by different human and natural influences.
Direct measurements of CO₂ in the atmosphere and in air trapped in ice show that atmospheric CO₂ increased by about 40 percent from 1800 to 2012. Measurements of different forms of carbon reveal that this increase is because of human activities.
The recent slowdown of warming means that climate change is no longer happening?
No, recent weather is not evidence that warming is not happening. Since the very warm year 1998 that followed the strong 1997-1998 El Niño, the increase in average surface temperature has slowed relative to the previous decade of rapid temperature increases. Despite the slower rate of warming, the 2000s were warmer than the 1990s. A short-term slowdown in the warming of Earth’s surface does not invalidate our understanding of long-term changes in global temperature.
CO₂ is already in the atmosphere naturally, and so human emissions are not significant.
Human activities have significantly disturbed the natural carbon cycle by extracting long-buried fossil fuels and burning them for energy, thus releasing CO₂ into the atmosphere.
Variations in output from the sun have caused the changes in the Earth’s climate in recent decades.
The sun provides the primary source of energy driving Earth’s climate system, but its variations have played very little role in the climate-changes observed in recent decades. Direct satellite measurements since the late 1970s show no net increase in the sun’s output while, at the same time, global surface temperatures have increased.
If the world is actually warming, some recent winters and summers would not have been so cold?
Global warming is a long-term trend, but that does not mean that every year will be warmer than the previous one. Day-to-day and year-to-year changes in weather patterns will continue to produce some unusually cold days and nights, and winters and summers, even as the climate warms.
A few degrees of warming is not cause for concern.
Even though an increase of a few degrees in global average temperature does not sound like much, global average temperature during the last ice age was only about 4°C to 5°C (7 °F to 9 °F) colder than now. Global warming of just a few degrees will be associated with widespread changes in regional and local temperature and precipitation, as well as with increases in some types of extreme weather events.
These are only a few of the justifications that have been made by those denying responsibility to reduce the threat of climate change that are directly and clearly refuted in the report.
c. The report also has ethical significance because its so clear that policy makers cannot reasonably claim that there is no scientific evidence about the major issues of concern to the climate change scientific community. As we have explained on this website, policy-makers may not, as a matter of ethics, rely on their own uninformed opinion about climate change science once they are informed by respectable scientific organizations that people and organizations within their jurisdiction are likely harming others around the world. This responsibility to not rely upon their own uninformed opinions increases when there are easy to understand explanations from respected scientific institutions of the scientific basis for concluding that people within their jurisdiction are harming others. The new report from the US Academy of Sciences and the Royal Society is such a clear explanation. And so government officials have a strong duty to go beyond their own uninformed opinion about whether humans are causing dangerous climate change. They must justify their refusal to act on strong, peer-reviewed scientific evidence that is accepted by mainstream scientific institutions that have the breadth of expertise to consider the interdisciplinary scientific issues that make up climate change science.
d. Because politicians have an affirmative duty to rely upon mainstream scientific views in regard to human activities that could cause great harm until peer-reviewed science establishes that the mainstream view is erroneous, the press has a journalistic duty to help citizens understand the limitations of any politician’s views that opposes action on climate change on scientific grounds particularly when there are easy to understand explanations of climate change science such as that in the new US National Academy and Royal Academy report. The new report will enable the press to fulfill its journalistic responsibilities by asking more precise and clearer questions of those who deny the mainstream scientific view.
For these reasons, the new report is ethically significant.
Donald A. Brown
Scholar in Residence and Professor
Sustainability Ethics and Law, Widener University School of Law,
(The Contraction and Convergence Equity Framework)
Perhaps the most challenging policy issue raised by climate change is how to fairly allocate responsibility among nations, regions, states, organizations, and individuals to reduce global greenhouse gas (ghg) emissions to non-dangerous levels. This problem is generally referred to as the problem of “equity” in the climate change regime. It a central issue in climate change policy formation because each government policy on reducing the threat of climate change is implicitly a position on that government’s fair share of safe global emissions. In addition, climate change will continue to get worse unless each country reduces its emissions to its fair share of safe global emissions. Therefore, “equity” is not only a challenging issue in forming climate policies, it is perhaps the most critical policy question facing the international community.
This article identifies 10 reasons why the equity framework known as “contraction and convergence” (C&C) is the most preferable of all the equity frameworks under serious discussion around the world. The end of this paper will acknowledge some alleged limitations of C&C yet explain why these limitations should be dealt with in one of several possible ways while adopting the C&C framework internationally.
C&C was first proposed in 1990 by the London-based non-governmental Global Commons Institute. (Meyer, 2000) ( GCI, 2009) Basically, C&C is not a prescription per se, but rather a way of demonstrating how a global prescription could be negotiated and organized. (Meyer, 1999:305) Implementing C&C requires two main steps. As a first step, countries must to agree on a long-term global stabilization level for atmospheric ghg concentrations. Although a warming limit of 2 degrees C has been preliminarily agreed to in international negotiations, subject to the acknowledged need to examine whether the limit should be reduced to 1.5 degrees C in studies that are underway, once a warming limit is finalized it must be translated into a ghg atmospheric concentration goal and then a global ghg emissions budget can be calculated. As a second step, countries need to negotiate a convergence date, that is a date at which time the emissions allocated to each country should converge on equal per-capita entitlements (“convergence”) while staying within the carbon budget. During the transition period, a yearly global limitation is devised which contracts over time as the per-capita entitlements of developed countries decrease while those of most developing countries increase. C&C would allow nations to achieve their per capita based targets through trading from countries that have excess allotments.
And so the heart of C&C is the idea that justice requires that rights to use the atmosphere as a carbon sink must be based upon the idea that all human beings have an equal right to use the global commons, the Earth’s atmosphere. Because it would be impossible to achieve equal per capita emissions allocations in the short-term, C&C allows higher emitting nations to converge on a equal per capita target at some future date thus giving these nations some time to achieve an equal per capita target goal.
II. 10 Reasons To Support C&C
C&C is the most preferable equity framework for the following reasons:
1. Climate change is a classic problem of distributive justice. Distributive justice holds that all people should be treated as equals in any allocation of public goods unless some other distribution can be justified on morally supportable grounds. And so distributive justice entails the idea that at all allocations of public goods should start with a with a presumption of equal rights to public goods. Yet, distributive justice does not require that all shares of public goods be equal but put puts the burden on those who want to move away from equal shares to demonstrate that their justification for their requested entitlement to non-equal shares is based upon morally relevant grounds. Therefore someone cannot justify his or her desire to use a greater share of public resources on the fact that he or she has blue eyes or that he or she will maximize his or her economic self-interest through greater shares of public goods because such justifications fail to pass the test of morally supportable justifications for being treated differently. Because C&C ends up at some time in the future with equal rights for all individuals to use the atmosphere as a sink, it is strongly consistent with theories of distributive justice. Although distributive justice would also allow for other morally relevant considerations to be considered in allocating ghg emissions that diverge from strict equality, including such considerations as historical ghg emissions levels, these other considerations can be built into a C&C framework either by negotiating the convergence dates in a C&C regime or in side-agreements on such issues as financing technologies for low-emitting nations at levels that would allow them to achieve per capita emissions limitations. C&C therefore is strongly consistent with theories of distributive justice because equal per capita emissions is the ultimate outcome of C&C even if that outcome is modified to take into account other legitimate equitable issues in negotiations by changing the convergence date or in side-agreements that finance compliance for poor nations that need assistance in achieving equal per capita emissions limitations.
2. Allocating ghg emissions on an equal per capita emissions basis is consistent with the virtually universally recognized ethical idea that all people should treat others as they wish to be treated. And so basing allocations on equal rights is the least contentious of all ethical theories of how to allocate public goods. Although there are are other ethically relevant facts that arguably should be considered in an allocation of ghg emissions such as economic capability to reduce emissions or historical emissions levels, these considerations are more controversial ethically particularly in regard to how they are operationalized in setting a numeric targets and therefore are more amenable to negotiated settlements on issues such as when convergence on equal per capita levels will be achieved rather than in setting basic allocation target levels.
3. Equal per capita emissions levels are also consistent with human rights theories about the duty to prevent climate change. That is, human rights are based upon the uncontroversial ethical theory that humans should treat each other as they would like to be treated because all people, regardless of where they are, should be treated with respect. Since the outcome of C&C is equal per capita rights, it is completely consistent with the idea of treating all people with equal respect, the foundation of human rights obligations. Because climate change undeniably violates several non-controversial human rights including the right to life, security, and food among other rights, climate change is widely acknowledged as a human rights problem. If climate change allocations are considered to be in fulfillment of human rights duties, then arguments based upon economic self-interest in setting ghg emissions targets are not an acceptable justification for avoiding human rights obligations. This is so because human rights obligations are viewed to ethically trump other values such as economic self interest or utility maximization as has been explained in significant detail in recent entries on this website. If human rights are violated by climate change, costs to those causing climate change entailed by policies to reduce the threat of climate change are not relevant for policy. That is if a person is violating human rights, he or she should desist even if it is costly to them. Therefore because a C&C framework has the strongest obvious link to human rights, if it were agreed to by the international community it would provide a strong argument against those who refuse to limit their emissions to an equal per capita level on the bases of cost to them.
4. Setting a ghg emissions target based upon distributive justice requires consideration of facts determined by looking backward, such as levels of historical ghg emissions, and issues determined by looking forward, such as what amount of the global commons should each individual be entitled to for personal use. Only equal per capita entitlements to the use a global commons satisfies future focused allocations issues without ethical controversy. And so an allocation that converges on equal per capita emissions allocations sometime in the future is more than any other allocation framework likely to be seen as universally just as far as future entitlements issues are concerned. And so, the C&C should be supported because it is most consistent with equal entitlements to use global commons resources.
5, The C&C framework is the simplest of the dozen or so equity allocation frameworks which have been seriously considered in international climate change negotiations. Because it is simpler, it will likely be easier to negotiate than the other equity frameworks which have received serious consideration. Its simplicity is derived from the fact that its focus is narrowly on climate change justice issues. Thus it is not complicated by other global injustice issues which are not climate change related yet which are considerations in some other equity frameworks . For instance, other proposed ghg allocation formula try and remedy economic injustice among nations, issues which are worthy of international attention yet greatly complicate the ethical issues which need to be considered in setting ghg targets. Because C&C is simple, it is very pragmatic.
6. Objections to equal per capita allocations have sometimes been made by representatives from high emitting nations such as the United States because of the enormous ghg emissions reductions which would be required of it to reach equal per capita emissions levels of diminishing allowable safe global emissions. Yet emissions reductions that would be required of high emitting nations under other proposed equity frameworks would be even steeper because they take into considerations issues such as, for example, historical emissions, economic wealth of nations, and ability of nations to pay. For this reason C&C holds the best chance of being accepted by the international community compared to other equity frameworks provided other issues that raise legitimate equity concerns including historical emissions levels are taken into account in some way in climate negotiations. These other justice concerns should be understood to be refinements of C&C rather than replacements of C&C because the C&C framework was always flexible enough to take into account additional issues relevant to distributive justice.
7. Many observers of international global efforts to achieve a solution to climate change argue that there has been too much emphasis on the obligations of nations while obligations of individuals and regional governments have largely been ignored. These observers argue that this focus on nations has helped high-emitting individuals and regional governments to largely escape public scrutiny. Because C&C obligations are premised on determining the obligations of nations based upon equal per capita shares, C&C can be seamlessly applied to state and regional governments and individuals around the world. If, for instance, a C&C framework determines that the world should converge on a per capita emissions target of 2 tons per person by 2025, it is therefore a straightforward deduction to argue that all individuals around the world should limit their emissions to be below 2 tons per person by 2025 at a minimum.
8. Some of the issues that proponents of other equity frameworks have argued should be considered in allocating national emissions targets such as historical emissions or the level of economic development in poor countries are already in serious consideration in international climate change negotiation agenda focused on such matters as: (a) financial responsibility for adaptation, (b) responsibility for loses and damages for climate change, and (c) financing of climate friendly technologies for developing countries. Because of this the ethical issues raised by historical emissions or economic ability of nations to achieve a per capita allocation could be relegated to other issues already being negotiated in international climate change negotiations while emissions allocations targets are allocated on the basis of C&C.
9. Establishing a norm that each person is only entitled to emit ghgs on an equal per capita basis would also help to draw lines about other contentious ethical issues raised by climate change such as how to count responsibility for historical emissions. Determining how to translate historical emissions into legal obligations raises a host of contentious issues including when to start counting historical emissions. This question could be simplified by first determining reasonable per capita emissions at various moments in history. In addition, determining liability for future excess emissions could be simplified if there was an agreement on acceptable per capita emissions. And so looking at the problem of climate change through a per capita lens helps draw lines about other climate change policy matters which will need to be faced. Therefore the establishment of a C&C framework would help with other policy questions that must be faced in the future.
10. Many have argued that responsibility for reducing ghg emissions should not only be based upon production of ghgs within a nation, the current presumption of international negotiations, but on products consumed in a nation but produced in another nations in processes which emitted ghgs. Although this shift from production ghg to consumption related ghg as a way of establishing national responsibility to achieve ghg emissions reduction targets is not likely to happen in the short-term, those who desire to assign liability on the basis of consumption could also use the C&C framework more easier than other proposed equity frameworks.
III. Limitations of C&C
Other proposed equity frameworks were developed to deal with a few alleged limitations of C&C. (As we have explained, C&C was always flexible enough to deal with additional issues relevant to distributive justice and therefore these alleged criticisms did not take into considerations the inherent flexibility of C&C.)
For instance, a second allocation formula which has received serious attention by the international community is the Greenhouse Development Rights Framework ( GDR) (Baer et al., 2008). GDR was developed, according to its proponents, because C&C does not leave adequate ghg emissions to allow developing nations to develop to levels that would allow them to escape grinding poverty. And so, proponents of GDR argue that any targets developed under a C&C framework will not be fair to poor nations and therefore will not be accepted by developing nations. We agree that several additional equitable issues including the justice dimensions of historical emissions levels must be dealt with for a C&C approach to be fair to low-emitting poor countries because emissions targets simply based upon equal per capita emissions to allocate the extraordinarily small carbon budget that is left to avoid dangerous climate change will leave almost nothing for low emitting nations to grow economically. The questions is not whether these issues need to be considered in setting targets, but rather how they are considered while maintaining the moral force of equal per capita rights to use the atmosphere as a carbon sink.
The Brazilian government has also developed a proposed equity framework based upon the need to take historical emissions levels seriously. Both the proposed GDR framework and the proposed Brazilian framework more directly deal with legitimate justice issues which are not expressly initially dealt with under C&C. Yet C&C can be adopted in combination with other agreements and adjustments to C&C assumptions that deal directly with the equitable issues more directly considered by the other proposed equity frameworks. For instance, the convergence dates in the C&C framework can be modified to take into consideration s0me historical emissions issues. In addition, separate agreements on such matters as financing carbon friendly technologies in poor, low emitting nations can deal with issues of need to assist developing nations achieve otherwise just ghg emissions targets.
In summary, some of the alleged limitations of C&C can be dealt in other agreements while retaining the basic structure of C&C. And so, for the 10 reasons above, the C&C should be adopted by the international community not withstanding the legitimate need to consider other issues relevant to distributive justice in setting ghg emissions reduction targets including levels of historical emissions and financial ability of poor nations to comply with per capita emissions limitations. For this reason, C&C is the most preferable and practical equitable framework for allocating climate change obligations among governments.
Meyer, A., (2000, Contraction and Convergence, The Global Solution to Climate Change, Ttones, UK: Green Books,
Donald A. Brown
Scholar in Residence and Professor, Sustainability Ethics and Law and Professor, Widener University School of LawPart-time Professor, Nanjing University of Science Information and Technology, Nanjing, China
This is the second entry which helps explain why US state ghg targets are woefully inadequate in light of the most recent science. The first entry included two charts provided by the Global Commons Institute. The following chart also prepared by the Global Commons Institute also shows what US states would need to do to reduce ghg emissions by 80 %, a level which is still woefully inadequate in light of the most recent science as we explained in the last entry hear. This chart is available for closer inspection at: http://www.gci.org.uk/images/US_Emissions_Data_by_State_with_Map.pdf
In addition to depicting state by state reductions pathways that would achieve a reduction of 80%, the numbers on this chart identify what this 80% reduction would accomplish in reducing per capita emissions in each state.
Despite the steepness of reductions depicted in this chart, as we explained in the last post, they are not sufficient in regard to the need to keep global emissions from exceeding a 250 gigaton carbon equivalent budget that is the upper limit of global emissions if the world seeks to have a reasonable change of avoiding dangerous climate change. (See the prior post for a fuller explanation of the carbon budget limitation)
As we explained in the last entry, any ghg target must implicitly make an assumption about two issues that are rarely explained. They are: (a) an assumption about what ghg emissions budget will be achieved by the target that will avoid dangerous climate change, the carbon budget assumption, and (b) a position on what distributive justice principle was followed by the government entity when the target was selected, the equity and justice assumption. Although these assumptions are implicitly made in setting any ghg emissions target, government entities usually escape expressly identifying these assumptions. Because these assumptions are key to critically reflecting on the adequacy of any ghg target, governments should be required to make their assumptions explicit about what carbon budget the target will help achieveand what principle of distributive justice the government reduction target relied in setting the ghg emissions target.
Donald A. Brown
Scholar In Residence, Sustainability Ethics and Law and Professor
Widener University School of Law
Part-time Professor, Nanjing University of Science and Technology