Esteemed philosopher John Broome avoids the familiar ideological stances on climate change policy and examines the issue through an invigorating new lens. As he considers the moral dimensions of climate change, he reasons clearly through what universal standards of goodness and justice require of us, both as citizens and as governments. His conclusions—some as demanding as they are logical—will challenge and enlighten. Eco-conscious readers may be surprised to hear they have a duty to offset all their carbon emissions, (...) while policy makers will grapple with Broome’s analysis of what if anything is owed to future generations. From the science of greenhouse gases to the intricate logic of cap and trade, Broome reveals how the principles that underlie everyday decision making also provide simple and effective ideas for confronting climate change. Climate Matters is an essential contribution to one of the paramount issues of our time. (shrink)

ArgumentDr. James Hansen's 1988 testimony before the U.S. Senate was an important turning point in the history of global climate change. However, no studies have explained why Hansen's scientific communication in this deliberative setting was more successful than his testimonies of 1986 and 1987. This article turns to Hansen as an important case study in the rhetoric of accommodated science, illustrating how Hansen successfully accommodated his rhetoric to his non-scientist audience given his historical conditions and rhetorical constraints. This article (...) provides a richer explanation for the rhetorical/political emergence of global warming as an important public policy issue in the United States during the late 1980s and contributes to scholarly understanding of the rhetoric of accommodated science in deliberative settings, an often overlooked area of science communication research. (shrink)

A climate that is too cold to grow crops for part of the year demands foresight and self-control skills. To the extent that a culture has developed intertemporal bargaining, its members will have more autonomy, but pay the cost of being more compulsive, than members of societies that have not. Monetary resources will be a consequence but will also be fed back as a cause.

The extent of the consensus among scientists on anthropogenic global warming (AGW) has the potential to influence public opinion and the attitude of political leaders and thus matters greatly to society. The history of science demonstrates that if we wish to judge the level of a scientific consensus and whether the consensus position is likely to be correct, the only reliable source is the peer-reviewed literature. During 2013 and 2014, only 4 of 69,406 authors of peer-reviewed articles on global (...) warming, 0.0058% or 1 in 17,352, rejected AGW. Thus, the consensus on AGW among publishing scientists is above 99.99%, verging on unanimity. The U.S. House of Representatives holds 40 times as many global warming rejecters as are found among the authors of scientific articles. The peer-reviewed literature contains no convincing evidence against AGW. (shrink)

Message from the planet -- When prophecy fails -- Energy and empire -- Climate economics -- Ethical emissions -- Dwelling in the light -- Mobility and pilgrimage -- Faithful feasting -- Remembering in time.

Climate change apparently calls for urgent action, but both individuals and governments have been slow to react. This is partly because, in addition to natural science, economics and moral philosop...

As an international instrument on climate change, the United Nations Framework Convention on Climate Change embraces a general obligation to protect the climate system, from which some specific obligations for developed countries fall off from. In this paper, I discuss three of such obligations. Firstly, the obligation to address the causes of climate change and to mitigate its adverse effects, next, the obligation to assist developing countries that are vulnerable to the adverse effects of climate (...) change in meeting the costs of adaptation to those adverse effects and finally, the obligation to support other developing countries by providing them with appropriate resources in order for them to mitigate and adapt to the adverse effects of climate change. I show that these obligations are framed in the treaty as obligations of beneficence and suggest that the first two can be expressed as obligations of justice. I argue for the soundness of expressing the obligations this way and that doing so may have the added virtue of addressing both the egoistic and performance problems since it introduces some incentive for taking the obligations seriously and the possibility for their realization. (shrink)

Scientific experts have confirmed that anthropogenic warming is underway, and some degree of adaptation is now unavoidable. However, the details of impacts on the scale of climate change at which humans would have to prepare for and adjust to them are still the subject of considerable research, inquiry, and debate. Planning for adaptation requires information on the scale over which human organizations and institutions have authority and capacity, yet the general circulation models lack forecasting skill at these scales, (...) and attempts to “downscale” climate models are still in the early stages of development. Because we do not know what adaptations will be required, we cannot say whether they will be harder or easier—more expensive or less—than emissions control. Whatever improvements in regional predictive capacity may come about in the future, the lack of current predictive capacity on the relevant scale is a strong argument for why we must both control greenhouse gas emissions and prepare to adapt. (shrink)

Climate change has become the most pressing moral and political problem of our time. Ethical theories help us think clearly and more fully about important moral and political issues. And yet, to date, there have been no books that have brought together a broad range of ethical theories to apply them systematically to the problems of climate change. This volume fills that deep need. Two preliminary chapters--an up-to-date synopsis of climate science and an overview of the ethical (...) issues raised by climate change--set the stage. After this, ten leading ethicists in ten separate chapters each present a major ethical theory and discuss the implications of that view for how we decide to respond to a rapidly warming planet. Each chapter first provides a brief exposition of the view before working out what that theory "has to say" about climate change and our response to the problems it poses. Key features: - Up-to-date synopsis of climate science - Clear overviews of a wide range of ethical theories and perspectives by leading experts - Insightful discussions of the implications of these theories and perspectives for our response to climate change - A unique opportunity to assess the relative strengths and weaknesses of various ethical viewpoints. (shrink)

The science underlying global warming, climate change, and the connections between these phenomena are reviewed. Projected future climate changes under various plausible scenarios of future human behavior are explored, as are the potential impacts of projected climate changes on society, ecosystems, and our environment. The economic, security, and ethical considerations relevant to determining the threat posed by climate change are subsequently assessed. The article then discusses the various means available for climate change mitigation, focusing (...) on the relative strengths and weaknesses of various societal alternatives including ‘geoengineering’ and transitioning to less carbon intensive energy sources. The article concludes with the author's views as to what steps might most profitably be taken to avert dangerous anthropogenic interference with Earth's climate, and the ramifications if such steps are not taken. (shrink)

Review of John Broome's overview of climate ethics.

We write as Australian youth work educators. We consider some of the ethical challenges involved in teaching youth work ‘in a warm climate’, situated in the diaspora of English youth work but where youth work also has a uniquely Australian character, placing us in an ethically liminal space in our teaching between an understanding of youth work that is robustly defended as being both ‘good’ and ‘true’, and what we do, which is different from this, and has its own (...) character and strengths. We situate this in the policy history of youth work in Australia, particularly in the ‘neoliberal turn’ that this has taken in the last four decades which has created ethical challenges for us, just as it has for those elsewhere. Two guiding questions shape this paper. The first is, given our differences, what challenges do we face in maintaining connections with ‘good’ youth work and its value base as traditionally defined and defended in England, and relatedly, given that policy and funding regimes in the UK seem to be aligning more with an Australian model, is there anything that the youth work community in the UK can learn from the Australian experience? (shrink)

This paper begins with a presentation of some important aspects of the science behind global warming. Following that, I argue that attempts to address global warming and climate change as problems facing humanity ought not to center around economic understandings of the problem or it solutions. Moreover, I argue that pragmatism is especially vulnerable to this sort of misappropriation in seeking solutions to climate change, and that environmental pragmatists ought to make a conscious effort to avoid (...) potential mischaracterizations of pragmatism by providing a clearer sense of the boundaries that delimit its approach to climate change, or any other environmental crisis. (shrink)

Many young Christians are waking up to the realities of climate change but just don't know how to help. Through stories from the field, theological and scriptural exploration, and practical advice, this field guide from Christian climate activist Kyle Meyaard-Schaap helps us take meaningful action grounded in the joy of caring for creation.

This article analyses 1,073 e-mails that were hacked from the Climatic Research Unit at the University of East Anglia in November 2009. The incident was popularly dubbed 'Climategate', indicating that the e-mails reveal a scientific scandal. Here we analyse them differently. Rather than objecting to the exchanges based on some idea about proper scientific conduct, we see them as a rare glimpse into a situation where scientists collectively prepare for participation in heated controversy, with much focus on methodology. This allows (...) us to study how scientists communicate informally about framing propositions of facts in the best possible way. Through the eyes of science and technology studies, the e-mails provide an opportunity to study communication as part of science in the making across disciplines and laboratories. Analysed as 'written conversation' the e-mails provide information about processes of consensus formation through 'agonistic evaluations' of other scientists' work and persuasion of others to support one's own work. Also, the e-mails contain judgements about other groups and individual scientists. Consensus-forming appeared as a precarious activity. Controversies could be quite resilient in the course of this decade-long exchange, probably reflecting the complexity of the methodological challenges involved. (shrink)

John Broome’s Climate Matters is a timely, elegant, and accessible book. His book is deliberately interdisciplinary, as is much of his work in moral philosophy more generally. The discussion of what should be done, and by whom, to prevent the adverse effects of climate change is informed by many years of philosophical engagement with economic theory, especially problems arising in the conceptualization and technical implementation of cost-benefit analysis.The central arguments in the book are informed as well by a (...) longstanding engagement with climate change science. Broome brings to bear a perspective forged in the work of his role as a lead author—and occasional critic—of the report of Working Group III of the .. (shrink)

Tackling climate change is one of the most demanding challenges of humanity in the 21st century. Still, the efforts to mitigate the current environmental crisis do not seem enough to deal with the increased existential risks for the human and other species. Persson and Savulescu have proposed that our evolutionarily forged moral psychology is one of the impediments to facing as enormous a problem as global warming. They suggested that if we want to address properly some of the (...) most pressing problems that cause catastrophic harm to our existence, we should enhance our moral behavior by biomedical means. The objective of this paper is, precisely, to reflect on whether a Moral Bio-Enhancement (henceforth MBE) program would be a viable option to confront the climate emergency. To meet this goal, I will propose the Ultimate Mostropic (hereafter UM) thought experiment, a hypothetical situation where we have already discovered the UM, an available, safe (without any deleterious secondary effects), extremely cheap and effective pill to enhance our cognitive, affective and motivational abilities related to morality. After briefly presenting the main argument of Persson and Savulescu regarding MBE and climate change, I will point out some of the difficulties that make MBE a daunting but exciting philosophical and scientific debate. In order to overcome these complications, I will describe the UM thought experiment, which involves two scenarios of the MBE program: (a) the state-driven, compulsory and universal enterprise, and (b) the initiative of voluntary individuals. I will show that the shortcomings of MBE programs through the UM in both scenarios make Persson and Savulescu’s proposal a not appealing pathway to mitigate climate change. In the final section, I will suggest that an inaccurate attribution of responsibilities underlies their proposal and that the collective inaction problem should be redirected primarily through a reinforcement of the political nature of the solutions. (shrink)

Phenologists track the seasonal behavior of plants and animals in response to climatic change. During the second half of the twentieth century, phenologists developed a large-scale project to monitor the flowering time of the common lilac across the United States. By the 1960s, this approach offered a potential plant-based indicator of anthropogenic climate change, a biological signal amidst the emerging narrative of increasing levels of atmospheric carbon dioxide. As a tangible representation of changes in climate—warmer temperatures lead to (...) earlier blooming—phenology proved highly legible to scientists, politicians, and laypeople. Yet, as phenology gained broader repute in the 1960s, both in agricultural stations and as a component program of the International Biological Program, it struggled to align itself epistemically with the regnant disciplinary assumptions of mid-century ecology. Operating in the hinterlands between laboratory and field, biology and meteorology, ecological theory and agronomy practice, phenologists challenged prevailing notions of the model organism and what it meant to study biology in the field. Rebranding the discipline as a component of ecosystem modeling, scientists successfully brought phenology within the purview of mainstream ecology. In so doing, however, they obscured its climate-relevant meteorological character and stymied the development of a biological narrative of climate change. (shrink)

The impacts of climate change are exposing vast stretches of dairy farms in the Waikato region of Aotearoa New Zealand to floods, droughts, and seawater inundation. This article describes how the Waikato ‘hazardscape’—co-created through processes of land dispossession, dairy intensification, and climate change—shapes the vulnerabilities and capacities of different dairy farming groups, specifically women, intergenerational, and Indigenous Māori farmers. Our findings show that while contemporary Māori owned dairy farms are sometimes situated on sub-optimal land as a result of (...) decades of land dispossession, their size and collective ownership structures can support greater flexibility, diversification, and adaptive decision-making processes. The longevity and financial security of many non-Indigenous intergenerational dairy farms means they are also more able to invest in long-term adaptation decisions, albeit often tied to the continuation of dairying. Furthermore, within these farm units, dairy farm women make a significant contribution to adaptation goals, yet their unique adaptation strategies and requirements are often overlooked, particularly in industry-run settings. The article foregrounds how achieving equitable adaptation in Aotearoa New Zealand’s agricultural landscape will require more attention to the gendered impacts of climate change, and the ways in which access to land (or lack thereof) supports or creates barriers to flexible adaptation. We call for more diverse and inclusive platforms for adaptation planning that are receptive to envisioning alternative, more equitable, and ultimately lower risk ways of co-existing with hazards, while managing productive land. (shrink)

The adaptive significance of temperature‐dependent sex determination (TSD) in reptiles remains unknown decades after TSD was first identified in this group. Concurrently, there is growing concern about the effect that rising temperatures may have on species with TSD, potentially producing extremely biased sex ratios or offspring of only one sex. The current state‐of the‐art in TSD research on sea turtles is reviewed here and, against current paradigm, it is proposed that TSD provides an advantage under warming climates. By means (...) of coadaptation between early survival and sex ratios, sea turtles are able to maintain populations. When offspring survival declines at high temperatures, the sex that increases future fecundity (females) is produced, increasing resilience to climate warming. TSD could have helped reptiles to survive mass extinctions in the past via this model. Flaws in research on sex determination in sea turtles are also identified and it is suggested that the development of new techniques will revolutionize the field. (shrink)

Using an analogy in science and everyday life is a double-edged sword because they are accompanied by alternative ideas, in addition to scientific concepts. Schools and public education explain global warming by making a common analogy between this phenomenon and greenhouse effects. Unfortunately, this analogy sometimes produces various incorrect explanatory mental models. To construct a correct understanding of global warming, it is necessary: first, to investigate the attributes of analogical reasoning; second, to understand these features by restructuring the (...) greenhouse analogy; and third, to explore the problems and benefits of the greenhouse analogy. The characteristics of relations, rather than objects, must be mapped according to the principle of systematicity, but the public tends to preserve the attributes of the base domain, which is mapped relatively easily. In conclusion, certain facets of the prevailing greenhouse analogy cause a distorted public view of climate change. We must use the greenhouse analogy and yet simultaneously emphasize the relations and attributes highlighted and hidden in the analogy during evaluation. (shrink)

Of this article's seven experiments, the first five demonstrate that virtually no Americans know the basic global warming mechanism. Fortunately, Experiments 2–5 found that 2–45 min of physical–chemical climate instruction durably increased such understandings. This mechanistic learning, or merely receiving seven highly germane statistical facts, also increased climate-change acceptance—across the liberal-conservative spectrum. However, Experiment 7's misleading statistics decreased such acceptance. These readily available attitudinal and conceptual changes through scientific information disconfirm what we term “stasis theory”—which some researchers (...) and many laypeople varyingly maintain. Stasis theory subsumes the claim that informing people about climate science may be largely futile or even counterproductive—a view that appears historically naïve, suffers from range restrictions, and/or misinterprets some polarization and correlational data. Our studies evidenced no polarizations. Finally, we introduce HowGlobalWarmingWorks.org—a website designed to directly enhance public “climate-change cognition.”. (shrink)

Compelling research in international relations and international political economy on global warming suggests that one part of any meaningful effort to radically reverse current trends of increasing green house gas (GHG) emissions is shared policies among states that generate costs for such emissions in many if not most of the world’s regions. Effectively employing such policies involves gaining much more extensive global commitments and developing much stronger compliance mechanism than those currently found in the Kyoto Protocol. In other words, (...) global warming raises the prospect that we need a global form of political authority that could coordinate the actions of states in order to address this environmental threat. This in turn suggests that any serious effort to mitigate climate change will entail new limits on the sovereignty of states. In this book I focus on the normative question of whether or not we have clear moral reasons to bind ourselves together in such a supranational form of political association. I argue that one can employ familiar liberal arguments for the moral legitimacy of political order at the state level to show that we do have a duty to support such a global political project. Even if one adopts the premises employed by the most influential forms of liberal scepticism to the ideas of global political and distributive justice, such as those advanced by John Rawls and Thomas Nagel, it is clear that the threat of global warming has expanded the scope of justice. We now have a global and demanding duty of justice to create the political conditions that would allow us to collectively address our impact on the Earth’s atmosphere. (shrink)

Long before the phrases “climate change” and “butterfly effect” were incorporated into the mainstream literature, these phrases appeared in an appropriate context almost verbatim in the first Chapter of a book entitled “The Emigrant” published in the mid-nineteenth century by Sir Francis Bond Head. Head was Upper Canada’s sixth Lieutenant Governor under King George IV and Queen Victoria. Head claimed that forest wildfires were “changing the climate” of North America as manifested in a warming effect “on the (...) thermometer”. In that author’s account, these fires were provoked by First Nations to create fly-free zones meant to attract game that they could then hunt more readily. Head used language such as “swarms of little flies, strange as it may sound, are, and for many years have been, most materially altering the climate…” which is remarkably reminiscent of E. N. Lorenz’s “butterfly effect” of the theory of chaotic dynamical systems. The historical context and the rationales that may have led Head to use this contemporary environmental language in a proper context are briefly discussed. (shrink)

Within the literature in green political theory on global environmental threats one can often find dissatisfaction with liberal theories of justice. This is true even though liberal cosmopolitans regularly point to global environmental problems as one reason for expanding the scope of justice beyond the territorial limits of the state. One of the causes for scepticism towards liberal approaches is that many of the most notable anti-cosmopolitan theories are also advanced by liberals. In this paper, I first explain why one (...) of the strongest expressions of liberal anti-cosmopolitanism cannot simply be dismissed because it may fail to support desired environmental ends. The political conception of justice represents one of the most important challenges to cosmopolitanism generally and is thus a serious challenge to viewing global environmental problems in terms of cosmopolitan justice. Second, I will show through the case of anthropogenic global warming that the political conception of justice under current conditions does have clear cosmopolitan implications despite its proponents' claims. (shrink)

Climate concepts are crucial to understand the effects of human activity on the climate system scientifically, and to formulate and pursue policies to mitigate and adapt to these effects. Yet, scientists, policymakers, and activists often use different terms such as “global warming,” “climate change,” “climate crisis,” or “climate emergency.” This advanced review investigates which climate concept is most suitable when we pursue mitigation and adaptation goals in a scientifically informed manner. It first discusses (...) how survey experiments and social science reviews on climate frames draw normative recommendations about which terms to use for public climate communication. It is suggested that such normative claims can be refined by including the scientific alongside lay uses of a climate concept, and by using explicit assessment conditions to evaluate how suitable a concept is for formulating mitigation and adaptation goals. Drawing on philosophical theories of conceptual change in science and conceptual engineering, a novel framework with two assessment conditions is introduced and then applied to “global warming,” “climate change,” “climate emergency,” and “climate crisis.” The assessment suggests that currently, “climate crisis” is most suitable to formulate and pursue climate mitigation and adaptation goals. Using this concept promotes the epistemic goals of climate science to a high degree, bridges scientific, political, and activist discourse, and fosters for democratic participation when articulating climate policies. (shrink)

Effective solutions to global warming will likely require coordinated national and international policies. But in the short term, individuals might choose to take actions or not take actions which will reduce their own contribution to global warming. Philosophers have argued that individual action to curb climate emissions is not morally inconsequential. A strong case can be made for individual causal responsibility for the production of the moral harms which would result from climate change. However, the nature (...) of human moral psychology is such that we can expect a lack of moral motivation to assume responsibility at the crucial moment of action. That is, moral agents face “the problem of failed intentions.” This paper assesses the moral value of specific techniques and technologies which promise to increase the ability of moral agents to fulfill their moral intentions. For instance, since individuals typically evaluate others’ actions as less moral than their own, social norming techniques which provide objective information about how one’s climate emissions compare to others can be an effective means of supporting moral action. (shrink)

Anthropogenic climate change poses some difficult ethical quandaries for non-anthropocentrists. While it is hard to deny that climate change is a substantial moral ill, many types of non-human organisms stand to benefit from climate change. Modelling studies provide evidence that net primary productivity (NPP) could be substantially boosted, both regionally and globally, as a result of warming from increased concentrations of greenhouse gases. The same holds for deployment of certain types of climate engineering, or large-scale, (...) technological modifications of the global environment in order to prevent or slow anthropogenic climate change. For example, solar radiation management with stratospheric aerosol injections could benefit plant life by promoting enhanced photosynthesis, increasing diffuse radiation, and reducing heat stress. This has a surprising implication: from some non-anthropocentric perspectives, certain scenarios of climate change and climate engineering might bring about morally better states of affairs when compared to emission-mitigation baselines. (shrink)

The central focus of this paper is the disjunction between the findings of climate science in revealing the threat of global warming and the failure to act appropriately to these warnings. The development of climate science can be illuminated through the perspective provided by Peircian semiotics, but efforts to account for its success as a science and its failure to convince people to act accordingly indicate the need to supplement Peirce’s ideas. The more significant gaps, it is (...) argued, call for the integration of major new ideas. It will be argued that Peirce should be viewed as a Schellingian philosopher, and it will then be shown how this facilitates integration into his philosophy of concepts developed by other philosophers and theorists within this tradition. In particular, Bourdieu’s concepts of the ‘habitus’ and ‘field’ will be integrated with Peirce’s semiotics and used to analyse the achievements and failures of climate science. It will be suggested that the resulting synthesis can augment Peirce’s evolutionary cosmology and so provide a better basis for comprehending and responding to the situation within which we find ourselves. (shrink)

This chapter contains sections titled: Climate Change Uncertainty Concerning the Science of Climate Change Uncertainties and the Ethics of Climate Change.

Is drastic action against global warming essential to avoid impoverishing our descendants? Or does it mean robbing the poor to give to the rich? We do not yet know. Yet most of us can agree on the importance of minimising expected deprivation. Because of the vast number of future generations, if there is any significant risk of catastrophe, this implies drastic and expensive carbon abatement unless we discount the future. I argue that we should not discount. Instead, the rich (...) countries should stump up the funds to support abatement both for themselves and the poor states of the world. Yet to ask the present generation to assume all the costs of drastic mitigation.is unfair.Worse still, it is politically unrealistic.We can square the circle by shifting part of the burden to our descendants. Even if we divert investment from other parts of the economy or increase public debt, future people should be richer, so long as we avert catastrophe. If so, it is fair for them to assume much of the cost of abatement.What we must not do is to expose them to the threat of disaster by not doing enough. (shrink)

This paper asks about the climate damages that Indian policymakers can expect. What is the likely magnitude of climate damages, and how sensitive are they to the level of warming? How much worse would climate damages be for Indians under, say, 5° of warming rather than 3°? Understanding the magnitude of climate damages and how rapidly they increase as temperature change increases is critical for finding the right climate mitigation policy. This paper provides (...) projections of India’s climate vulnerability on the basis of new microeconomic and macroeconomic evidence. The authors’ quantifications show that India is highly vulnerable to climate damage. Their baseline macroeconomic approach suggests that climate change peaking at 5°C, rather than 3°C, would be as detrimental to Indian well-being as a reduction in GDP by about 18 percent for each of the years from 2020 to 2040. Such an equivalent threat to near-term economic outcomes would be an overriding policy priority if political leaders anticipated it. The authors’ microeconomic results suggest that this may be an underestimate, because it ignores humidity. Emerging evidence suggests that humans are especially vulnerable to exposure to high temperatures in contexts of high humidity; humidity is a previously underappreciated and unquantified reason way in which India may be more climate-vulnerable even than some hotter developing and middle-income countries. (shrink)

Climate change is imposing intensified and novel selection pressures on organisms by altering abiotic and biotic environmental conditions on Earth, but studies demonstrating genetic adaptation to climate change mediated selection are still scarce. Evidence is accumulating to indicate that both genetic and ecological constrains may often limit populations' abilities to adapt to large scale effects of climate warming. These constraints may predispose many organisms to respond to climate change with range shifts and phenotypic plasticity, rather (...) than through evolutionary adaptation. In general, broad conclusions about the role of evolutionary adaptation in mitigating climate change induced fitness loss in the wild are as yet difficult to make.Editor's suggested further reading in BioEssays: How will fish that evolved at constant sub‐zero temperatures cope with global warming? Notothenioids as a case study Abstract. (shrink)

climate scientists have been engaged in a decades-long debate over the standing of satellite measurements of the temperature trends of the atmosphere above the surface of the earth. This is especially significant because skeptics of global warming and the greenhouse effect have utilized this debate to spread doubt about global climate models used to predict future states of climate. I use this case from an under-studied science to illustrate two distinct philosophical approaches to the relation among (...) data, scientists, measurement, models, and theory. I argue that distinguishing between 'direct' empiricist and 'complex' empiricist approaches helps us understand and analyze this important scientific episode. I also introduce a complex empiricist account of testing and evaluation, and contrast it with the basic Hypothetico-Deductive approach to the climate models used by the direct empiricists. This more developed complex empiricist apporach will serve philosophy of science well, as computational models become more wide-spread in the sciences. (shrink)

Part 1. Introduction -- Introduction: Navigating the Perfect Moral Storm in Light of a Thirty-Five Year Debate -- Thirty-Five Year Climate Change Policy Debate -- Part 2. Priority Ethical Issues -- Ethical Problems with Cost Arguments -- Ethics and Scientific Uncertainty Arguments -- Atmospheric Targets -- Allocating National Emissions Targets -- Climate Change Damages and Adaptation Costs -- Obligations of Sub-national Governments, Organizations, Businesses, and Individuals -- Independent Responsibility to Act -- Part 3. The Crucial Role of Ethics (...) in Climate Change Policy Making -- Why Has Ethics Failed to Achieve Traction? -- Conclusion: Navigating the Perfect Moral Storm. (shrink)

Climate change – if not averted adequately and in time – could cause serious disruptions in society including issues associated with global warming and sea-level rise. It has been argued that geoen...

The scientific evidence and understanding underpinning societal responsibility for the accelerating pace of climate change has become increasingly strong over the past hundred years. Although many nations have begun to take actions that have the potential to eventually slow the pace of change, contention over the issue continues in the United States, particularly in the nation's capital. A major cause appears to arise from different interpretations of the evidence arising from different perspectives on the issue, including those of the (...) scientific, environmental, fossil-fuel generating, technological, economic and ethical communities. In addition, the public encounters a cacophony of intermixed perspectives from the media and elected officials. While each perspective provides some useful insights, each alone contributes to inhibiting development of the national political consensus needed to responsibly address climate change. Without leadership that balances and reconciles competing perspectives, it is unlikely that a sufficient limiting of emissions will be enacted to prevent significant changes in climate that will impose increasing challenges for those in both developing and developed nations. (shrink)

With the significant disconnect between the collective aim of limiting warming to well below 2°C and the current means proposed to achieve such an aim, the goal of this paper is to offer a moral assessment of prominent alternatives to current international climate policy. To do so, we’ll outline five different policy routes that could potentially bring the means and goal in line. Those five policy routes are: (1) exceed 2°C; (2) limit warming to less than 2°C (...) by economic de-growth; (3) limit warming to less than 2°C by traditional mitigation only; (4) limit warming to less than 2°C by traditional mitigation and widespread deployment of Negative Emissions Technologies (NETs); and (5) limit warming to less than 2°C by traditional mitigation, NETs, and Solar Radiation Management as a fallback. In assessing these five policy routes, we rely primarily upon two moral considerations: the avoidance of catastrophic climate change and the right to sustainable development. We’ll conclude that we should continue to aim at the two-degree target, and that to get there we should use aggressive mitigation, pursue the deployment of NETs, and continue to research SRM. (shrink)

The polluter pays principle (PPP) has the form of a reparative principle. It holds that since some countries have historically contributed more to global warming than others, these countries have the follow-up responsibility now to do more to address climate change. Yet in the climate justice debate, PPP is often rejected for two reasons. First, so the objection goes, it wrongly burdens present-day individuals because the actions of their predecessors. This is the unfairness objection. The second objection (...) is that early polluters were not aware of the harm that they were doing, and so ought not to be held culpable. This is the objection from excusable ignorance. In this commentary, I defend PPP against these two objections. The aim of this short reflection is not to provide a full justification of PPP, or to respond to all objections that have been made against it. My more limited but, I hope, important goal is to show that PPP is neither immediately unfair (in making innocent parties pay) nor immediately unreasonable (in making excusably ignorant parties pay) as is commonly noted, and is therefore worthy of further consideration as a principle of climate justice. (shrink)