The practice of trading forest carbon credits has gained significant attention as a strategy to combat climate change. By allowing companies to buy and sell credits representing forest carbon sequestration, it aims to create financial incentives for forest preservation. However, a recent report highlights the dangers of commodifying forest carbon if such financial mechanisms overshadow other vital environmental and social values. To understand the complexities of this issue, we can turn to the mindsponge theory (MT), particularly its information-value (...) nexus hypothesis, for valuable insights. (shrink)

Public sentiment regarding climate change in the United States is starkly divided, with the Republicans and Democrats holding markedly different views. Given the inherent connection between the water crisis and climate change, this research aimed to investigate the interplay between the residents’ beliefs about the impact of climate change on water supply unpredictability, their political identity, and their willingness to adopt direct and indirect potable water reuse. The Bayesian Mindsponge Framework (BMF) analytics was conducted (...) on a dataset of 1,831 water users in the arid region of Albuquerque, New Mexico. The findings reveal a complicated interplay among examined factors. Specifically, we discovered a positive association between the belief in the impacts of climate change and the willingness to adopt potable water reuse among non-Republican water users. In contrast, Republican water users exhibit a negative association between climate change belief and willingness to adopt potable water reuse. Interestingly, despite this, Republicans generally show a higher overall willingness to adopt potable water reuse compared to non-Republicans. These findings suggest that contextual factors in Albuquerque, New Mexico, in which challenges of aridity and economic dependence on water resources are pronounced, might be important aspects contributing to the Republican’s high willingness to adopt potable water reuse. Also, the current climate change communication strategy with the Republicans might not be appropriate, and it should be tailored to align with the Republicans’ beliefs and persuade them better. (shrink)

Understanding climate change is becoming an urgent requirement for those in education. The normative values of education have long been closely aligned with the global, modernised world. The industrial model has underpinned the hidden and overt curriculum. Increasingly though, a new eco-centric orientation to economics, technology, and social organisation is beginning to shape up the post-carbon world. Unless education is up to date with the issues of climate change, the estate of education will be unable (...) to meet its task of knowledge transfer. This paper covers the basic science and ethical policy debates, and begins to outline the questions that will necessarily entangle education as we orientate ourselves to the new world that is upon us. (shrink)

Climate change policy decisions are inescapably intertwined with future generations. Even if all carbon dioxide emissions were to be stopped today, most aspects of climate change would persist for hundreds of years, thus inevitably raising questions of intergenerational justice and sustainability. -/- The chapter begins with a short overview of discount rate debate in climate economics, followed by the observation that discounting implicitly makes the assumption that natural capital is always substitutable with man-made capital. (...) The chapter explains why non-substitutability matters if we are to take intergenerational justice seriously and invest aptly in mitigation. Non-substitutability simply implies that there are some forms of capital that cannot be substituted by another, and so consumption of one cannot be compensated with additional stocks of the other. The non-substitutability of critical natural capital can be defended without empirical data about preferences or the need to view the environment as a superior good, and the argument is presented through the language of keeping options open. -/- Those alive today make decisions about what natural capital to use and what to save for future. These choices are often represented as different points in a continuum of sustainability: weak sustainability is associated with a high degree of substitutability and therefore a lot of flexibility over what capital to consume, whereas strong sustainability is more stringent on substitutability. While it may be that in economical understanding weak and strong sustainability collapse into one another, philosophically the emphasis is slightly different. The chapter discusses how normative sustainability can be supported without ignoring opportunity costs and trade-offs. (shrink)

Obstacles to achieving a global climate treaty include disagreements about questions of justice raised by the UNFCCC's principle that countries should respond to climate change by taking cooperative action "in accordance with their common but differentiated responsibilities and respective capabilities and their social and economic conditions". Aiming to circumvent such disagreements, Climate Change Justice authors Eric Posner and David Weisbach argue against shaping treaty proposals according to requirements of either distributive or corrective justice. The USA's (...) climate envoy, Todd Stern, takes a similar position. In this article I explain the practical and theoretical drawbacks of Posner & Weisbach's welfarist perspective and propose an alternative. I show that their arguments fail to rule out John Rawls' non-utilitarian, political conception of international justice and human rights, the Law of Peoples. On this basis I develop a conception of climate justice that highlights implications of some of Rawls' principles and adds a principle for determining fair shares of climate -treaty-related benefits and burdens. I propose this conception as a moral framework for negotiating a treaty that would promote human welfare consistently with requirements of justice, and I argue that a treaty proposal satisfying these requirements could best satisfy Posner & Weisbach's own feasibility criteria. (shrink)

Climate change – and its most dangerous consequence, the rapid overheating of the planet – is not the offspring of a natural procedure; instead, it is human-induced. It is only the aftermath of a specific pattern of conomic development, one that focuses mainly on economic growth rather than on quality of life and sustainability. Since climate change is a major threat not only to millions of humans, but also to numerous non-human species and other forms of (...) life, as well as to the equilibrium and the viability of the very planet, addressing it is of dire importance. In this chapter it will be argued that addressing the threat of climate change is primarily a task and a challenge for ethics, since the stabilization and gradual amelioration of the situation requires abandoning an up to now dominant model of life, longestablished customs and a so far cogent system of moral values. It will be further maintained that this for ethics might – or, even, should – become a new categorical imperative, since preserving the viability of the planet is a fundamental moral duty not only towards the existing members of the moral community, but also towards future generations. (shrink)

Climate change mitigation has become a paradigm case both for externalities in general and for the game-theoretic model of the Tragedy of the Commons (ToC) in particular. This situation is worrying, as we have reasons to suspect that some models in the social sciences are apt to be performative to the extent that they can become self-fulfilling prophecies. Framing climate change mitigation as a hardly solvable coordination problem may force us into a worse situation, by changing (...) real-world behaviour to fit our model, rather than the other way around. But while this problem of the performativity of the ToC has been noted in a recent paper in this journal by Matthew Kopec, his proposed strategies for dealing with their self-fulfilling nature fall short of providing an adequate solution. Instead of relying on the idea that modelling assumptions are always strictly speaking false, this paper shows that the problem may be better framed as a problem of underdetermination between competing explanations. Our goal here is to provide a framework for choosing between this set of competing models that allows us to avoid a ‘Russian Roulette’-like situation in which we gamble with existential risk. (shrink)

This paper distinguishes between five different approaches to social discount rates in climate change economics, criticizes two of these, and explains how the other three are to some degree mutually compatible. It aims to shed some new light on a longstanding debate in climate change economics between so-called “descriptivists” and “prescriptivists” about social discounting. The ultimate goal is to offer a sketch of the conceptual landscape that makes visible some important facets of the debate (...) that very often go unacknowledged. (shrink)

Climate change is ‘a complex problem raising issues across and between a large number of disciplines, including physical and life sciences, political science, economics, and psychology, to name just a few’ (Gardiner 2006: 397). It is also a moral problem. Therefore, in this chapter, I will consider what kind of a contribution an ethical theory called ‘contractualism’ can make to the climate change debates. This chapter first introduces contractualism. It then describes a simple climate (...) change scenario. The third section explains what kind of moral obligations we would have in that situation according to contractualism. Finally, the last section discusses some of the advantages and problems of the sketched view. These discussions should help us to better understand contractualism and illustrate how contractualism could perhaps enable us to come to grips with some of the more difficult moral aspects of climate change. (shrink)

While the foundations of climate science and ethics are well established, fine-grained climate predictions, as well as policy-decisions, are beset with uncertainties. This chapter maps climate uncertainties and classifies them as to their ground, extent and location. A typology of uncertainty is presented, centered along the axes of scientific and moral uncertainty. This typology is illustrated with paradigmatic examples of uncertainty in climate science, climate ethics and climate economics. Subsequently, the chapter discusses the (...) IPCC’s preferred way of representing uncertainties and evaluates its strengths and weaknesses from a risk management perspective. Three general strategies for decision-makers to cope with climate uncertainty are outlined, the usefulness of which largely depends on whether or not decision-makers find themselves in a context of deep uncertainty. The chapter concludes by offering two recommendations to ease the work of policymakers, faced with the various uncertainties engrained in climate discourse. (shrink)

This chapter qualitatively lays out some of the ways that climate change impacts are evaluated in integrated assessment models (IAMs). Putting aside the physical representations of these models, it first discusses some key social or structural assumptions, such as the damage functions and the way growth is modeled. Second, it turns to the moral assumptions, including parameters associated with intertemporal evaluation and interpersonal inequality aversion, but also assumptions in population ethics about how different-sized populations are compared and how (...) we think about distributing goods across or within times. The intention is to survey the morally important assumptions that go into estimates of the social cost of carbon, the marginal cost of an additional tonne of carbon dioxide to society. (shrink)

Climate change is today one of the greatest risks to peace and security, but arguably remains at the margins of policy action amid the loss of trust in multilateral institutions. The impacts of climate change are already felt by local communities in regions on the frontline. While communities have exercised agency to generate local impact and promote trust, the overwhelming impact of climate change necessitates effective state responses, and regional and global cooperation. Global cooperation, (...) in turn, needs to better address the challenges to peace and security faced by regions most exposed to the impacts of climate change. Southeast Asia is already experiencing direct climate change impacts from changes in temperature, precipitation, sea-level rise, ocean warming, and more frequent and intense extreme weather events. The subsequent indirect climate change impacts on food and water security, and changes in natural resource exploitation and migration patterns, affect the lives and livelihoods of people and communities across the highly diverse region and threaten its peace and security. In Southeast Asia, the cross-cutting impacts of climate change on peace and security can be analysed through the framework of comprehensive security. Comprehensive security is the organising concept of security in the region, integrated and widely reflected in the security lexicon in the ASEAN region and beyond. Unlike the conventional notion of security, which is narrowly defined to mean defending state borders from military attack, comprehensive security is a much broader conceptualisation of security that “[goes] beyond (but does not exclude) the military threats to embrace the political, economic and socio-cultural dimensions.". (shrink)

commissioned for the Stern Review of the Economics of Climate Change.

This article outlines the role of globalized mass media in the perception of environmental and social threats and its reciprocal conditionality in the globalized society. It examines the reasons why the global environmental crisis will not lead to a world-wide environmental movement for change of the basic imperatives of the world economicpolitical system. Coherency between globalized mass media and wide-spreading of consumer lifestyle exists despite the fact that it deepens the devastation of environment and social conflicts. Globalized mass media (...) owned by transnational corporations are not only a part of the current global economic-political system, but also the prerequisite of its creation and existence, as well as social contradictions and conflicts. (shrink)

Climate ethics has been concerned with polluter pays, beneficiary pays and ability to pay principles, all of which consider climate change as a single negative externality. This paper considers it as a constellation of externalities, positive and negative, with different associated demands of justice. This is important because explicitly considering positive externalities has not to our knowledge been done in the climate ethics literature. Specifically, it is argued that those who enjoy passive gains from climate (...) change owe gains not to the net losers, but to the emitters, just as the emitters owe compensation to the net losers for the negative externality. This is defended by appeal to theoretical virtues and to the social benefits of generating positive externalities, even when those positive externalities are coupled with far greater negative externalities. We call this the Polluter Pays, Then Receives ('PPTR', or 'Peter') Principle. This principle is then applied at two levels in the context of Canada. [Open access]. (shrink)

John Broome claims that there is a sacrifice-free solution to climate change. He says this is a consequence of elementary economics. After explaining the economic argument in somewhat more detail than Broome, I show that the argument is unsound. A main problem with it stems from Derek Parfit's ‘nonidentity effect.’ But there is hope, since the nonidentity effect underwrites a more philosophical yet more plausible route to a sacrifice-free solution. So in the end I join Broome in (...) asking economists and policymakers to help make this a reality. (shrink)

Climate is a fundamental element of the environment. Human beings' sound living depends on a healthy and sustainable climate. However, our climate is losing its natural balance day by day. As a result, it is posing harmful effects on us through different types of natural calamities. Apart from several natural processes, anthropocentric (human-caused) activities are the main cause of it. Different types of natural disasters that are occurring in the environment—for instance, hurricanes, cyclones, earthquakes, mudslides, floods, wildfires, (...) volcanic eruptions, and weather events like extreme droughts and monsoons—are likely increasing in frequency due to climate change. On the other hand, sea level is gradually rising because of global warming, which is affecting all of us in various ways. Sea-level rise has potentially harmful consequences for the inhabitants of this surface. It will not only force the coastal population to migrate from the coastal zone to inland zones, but it will also affect the global population. Along with the sea-level rise, downpours and winter storms are also occurring in many places. These are some of the risks modeled by climate change. Therefore, climate change is a complex problem that should be addressed by the physical and life sciences, psychology, economics, and politics. Moreover, climate change also raises ethical questions, such as our obligations, rights, and duty to preserve a sound climate for future generations. The main aim of this paper is to provide arguments on behalf of our moral obligations to protect a balanced and secure climate for future generations from an ethical perspective. In this paper, I intend to discuss climate change and future generations, our moral obligations to preserve a sound climate for future generations, the rights of future generations to live in a healthy climate, as well as some ways to establish justice toward future generations regarding climate change, and finally, I will confer upon the role of present generations for sustaining a sound and healthy atmosphere of the climate. (shrink)

Temporal discounting is a technical operation in climate change economics. When discount rates are positive, economic evaluation treats future benefits as less important than equivalent present benefits. This chapter explains and critically evaluates four different reasons economists have given for tying discount rates to the interest rates we observe in real-world markets. I suggest that while philosophers have correctly criticized three of these reasons, their criticisms of the fourth miss the mark. This is because philosophers have not (...) taken heed of the distinct analytical framework in which the fourth reason arises. (shrink)

Environmental pollution and climate change have been considered the main environmental challenges affecting the world’s ecosystem, including that of South Africa. They cause poverty, land degradation, and health hazards. One of the leading causes and contributing factors of environmental pollution and climate change is carbon emissions into the atmosphere. As a way to curb these emissions, Carbon tax policy has been introduced in various countries, including South Africa. In 2019, a Carbon tax was introduced to assist (...) South Africa in delivering on the commitments made in the Paris Agreement in 2015. If the policy is effectively applied, it will raise revenues while reducing carbon dioxide emissions. Before and after introducing the Carbon tax policy in South Africa, there has been debate and discussion on its impact on the environment, economy, and society. Based on the debate and discussion, it has been observed that more attention is paid to the economic implications and benefits of the tax on South Africa than the ethical implications. Thus, this paper aims to contribute to the ongoing debate and discussion by ethically evaluating the Carbon tax policy in South Africa. (shrink)

“By natural order, birthing needs good timing and at a moderate pace. […] Looking for food in the fields and gardens farther from home is important. Also, try eating different kinds of nuts and worms. Mastering all of this would guarantee a prosperous life.” -/- —In “Food”; The Kingfisher Story Collection.

Several philosophers have recently argued that policies aimed at reducing human fertility are a practical and morally justifiable way to mitigate the risk of dangerous climate change. There is a powerful objection to such “population engineering” proposals: even if drastic fertility reductions are needed to prevent dangerous climate change, implementing those reductions would wreak havoc on the global economy, which would seriously undermine international antipoverty efforts. In this article, we articulate this economic objection to population engineering (...) and show how it fails. We argue, first, that the economic objection paints an inaccurate picture of the complicated relationship between demographic change and economic growth, and second, that any untoward economic effects of fertility reduction can be mitigated with additional policies. Specifically, we argue that supplementing fertility reduction with policies that facilitate the emigration of younger people from developing nations to developed nations could allow for both global reductions in GHG emissions and continued economic stability. Further, we show that moral arguments against such unprecedented increases in immigration are unsuccessful. We conclude that population engineering is a practical and morally justifiable tool for addressing the twin evils of climate change and global poverty. (shrink)

In the face of the climate crisis, countries around the globe have committed to reducing greenhouse gas emissions (GHG) and achieving carbon neutrality. While the effects of such commitments remain ambiguous, some risks and obstacles could potentially hinder nations, even leading to failure in fulfilling their climate commitments. The paper presents four major challenges that can impede the global progress towards emission reduction targets as pledged: 1) energy security and global socio-economic development demands, 2) political conflicts, geopolitical instability, (...) and warfare, 3) challenges in developing and scaling emission reduction technologies, and 4) public perceptions toward climate change. Without addressing these challenges, humanity and the Earth's ecosystems will face the dangers of venturing into “uncharted waters” full of uncertainties and disorder. A potential solution to these issues is for the world to transition from an eco-deficit culture to an eco-surplus culture, where the lasting values of Earth's ecosystems are recognized as the conscience of our time. (shrink)

Tropical cyclones and their pertinent natural hazards can cause destructive damage to people and properties. Vietnam, located in the Northwest Pacific basin, is highly vulnerable to tropical cyclones due to its geography (i.e., a long coastline and narrow width). In this paper, we discuss how the negative consequences of tropical cyclones on Vietnam can be exacerbated by climate change and how forests, either in the mountainous or in the coastal regions, play crucial roles in safeguarding the country from (...) tropical cyclones and their pertinent hazards (e.g., landslides and flood). Despite the importance of forests, their protection values are undermined, leading to continuous deforestation of natural forests for socio-economic development. We suggest the social transitions towards eco-surplus culture through more proactive and transparent communication of the destructive outcomes of tropical cyclones and the protection roles of forests in the current climate change era. (shrink)

In this article, we claim that recent developments in climate science and renewable energy should prompt a reframing of debates surrounding climate change mitigation. Taken together, we argue that these developments suggest (1) global climate collapse in this century is a non-negligible risk, (2) mitigation offers substantial benefits to current generations, and (3) mitigation by some can generate social tipping dynamics that could ultimately make renewables cheaper than fossil fuels. We explain how these claims undermine familiar (...) framings of climate change, wherein mitigation is understood as self-sacrifice that individuals and governments must be morally persuaded or incentivized to undertake. [Open access]. (shrink)

Can investing in women’s agriculture increase productivity? This paper argues that it can. We assess climate and gender bias impacts on women’s production in the global South and North and challenge the male model of agricultural development to argue further that women’s farming approaches can be more sustainable. Level-based analysis (global, regional, local) draws on a literature review, including the authors’ published longitudinal field research in Ghana and the United States. Women farmers are shown to be undervalued and to (...) work harder, with fewer resources, for less compensation; gender bias challenges are shared globally while economic disparities differentiate; breaches of distributive, gender, and intergenerational justices as well as compromise of food sovereignty affect women everywhere. We conclude that investing in women’s agriculture needs more than standard approaches of capital and technology investment. Effective ‘investment’ would include systemic interventions into agricultural policy, governance, education, and industry; be directed at men as well as women; and use gender metrics, for example, quotas, budgets, vulnerability and impacts assessments, to generate assessment reports and track gender parity in agriculture. Increasing women’s access, capacity, and productivity cannot succeed without men’s awareness and proactivity. Systemic change can increase productivity and sustainability. (shrink)

The activities of man and other beings on a daily basis have been the primordial antecedence for the negative changes experienced in the environment today. Nature in its rudimentary state was harmless and friendly to man and its inhabitants. But owing to the egocentric approaches of man towards the environment, fundamentally for the purpose of earning a living and advancing development, man manipulates every available resources to his favor including the environment. These egomaniacal demeanor has propelled the once harmless nature (...) to react against human beings, causing socio-economic and psychological damages. Climate change to this end has been defined as a change in oceans, land surfaces and ice sheets occurring overtime scales of decades or longer. It expresses itself in the evidence differentiation from the usual sun radiation, volcanoes, internal virility in climate system or human system. The twenty first century is facing the boomerang of the human seeds sown on the climate. It becomes imperative for Africans to align with the rest of the world in fashioning out an approach to tackle climate change and other related environmental issues, and curb the present and predicted damages. To this end the paper proposes Innocent Asouzu’s complementary Noetic Propaedeutic principle as the viable prognosis towards fostering environmental peace, mutual co-existence with all other beings within the horizon to bring about solution to climate change. The paper explores the philosophical methods of analysis and prescription in its research. (shrink)

Given the irrationality and failures of human behaviour in the face of ecocide, the majority of humankind appears either unable or unwilling to change self-destructive ways of life. Rejecting common accounts, the author suggests that the reasons for our stubborn resistance to change go well beyond cognitive dissonance or any standard political and economic explanations. Nor is the answer to be found in human history alone. The driving forces underlying that resistance, the author argues, originate far back in (...) evolutionary time to the impulses governing all sentient creatures. -/- NB: The copy of this article is the final, pre-production version of the article published in the Architectural Research Quarterly. (shrink)

Joseph Heath sometimes plays the role of a gadfly in climate and environmental ethics. He often defends conventional, economics-focused claims which rub many philosophers the wrong way—claims that are at the heart of issues raised in these pages, claims such as that discounting is justifiable, growth is good, or cost-benefit analysis is appropriate in liberal democracies. I think we can all agree that sophisticated defences of conventional positions play an important part in the ecosystem. For philosophers, a gadfly (...) can challenge entrenched conceptions. If we agree that these goals are worthwhile, then this book serves as a useful summary and synthesis of the ways Heath has ably defended conventional claims about climate policy. (shrink)

The importance of addressing the existential threat to humanity, climate change, has grown remarkedly in recent years while conflicting views and interests in societies exist. Therefore, climate change agendas have been weaponized to varying degrees, ranging from the international level between countries to the domestic level among political parties. In such contexts, climate change agendas are predominantly driven by political or economic ambitions, sometimes unconnected to concerns for environmental sustainability. Consequently, it can result in (...) an environment that fosters antagonism and disputes over power and position and increases the risk of prolonged confrontations, hindering the collective global efforts to mitigate and adapt to climate change. Through the current discourse, we aim to provide a preliminary definition of the weaponization of climate change and environmental degradation and examine its risks and consequences on international relations, political dynamics, public perception, and the comprehensive integrity of climate action. We also recommend embracing a globally coordinated, scientifically substantiated approach to circumvent climate change by building an eco-surplus cultural value system. (shrink)

The social cost of carbon (SCC) is a central concept in climate change economics. This chapter explains the SCC and investigates it philosophically. As is widely acknowledged, any SCC calculation requires the analyst to make choices about the infamous topic of discount rates. But to understand the nature and role of discounting, one must understand how that concept—and indeed the SCC concept itself—is yoked to the concept of a value function, whose job is to take ways the (...) world could be across indefinite timespans and to rank them from better to worse. A great deal, therefore, turns on the details of the value function and on just what is meant by “better” and “worse.” This chapter seeks to explicate these and related issues, and then to situate them within the evolving landscape of federal climate policy in the United States. (shrink)

Philosophers have distinguished at least three different interpretations of Rawls’s difference principle. This principle claims that social and economic inequalities are to be arranged so that they are to the greatest benefit of the least advantaged. My aim in this paper is to show that according to the most attractive and plausible interpretation of that principle, which I call the reciprocity view, Rawls’s difference principle allows us to limit economic growth in order to preserve nature and protect the interests of (...) future generations, while still meeting the demands of justice concerning the least advantaged members of society. (shrink)

Anthropogenic climate change has become a hot button issue in the scientific, economic, political, and ethical sectors. While the science behind climate change is clear, responses in the economic and political realms have been unfulfilling. On the economic front, companies have marketed themselves as pioneers in the quest to go green while simultaneously engaging in environmentally destructive practices and on the political front, politicians have failed to make any significant global progress. I argue that climate (...) change needs to be framed as an ethical issue to make serious progress towards the path to a sustainable human civilization. In an effort to motivate the urgency needed to confront climate change, I argue that climate change seriously affects human beings living here and now, and if one cares about unnecessarily harming fellow innocent living human beings, then one should care about one’s own environmental impact related to climate change. Since this argument does not depend upon any specific philosophical, religious, or ethical tradition but applies regardless of one’s particular background, I hope to induce genuine concern among all human beings regarding this issue. (shrink)

This paper discusses ethical issues surrounding Integrated Assessment Models (IAMs) of the economic effects of climate change, and how climate economists acting as policy advisors ought to represent the uncertain possibility of catastrophe. Some climate economists, especially Martin Weitzman, have argued for a precautionary approach where avoiding catastrophe should structure climate economists’ welfare analysis. This paper details ethical arguments that justify this approach, showing how Weitzman’s “fat tail” probabilities of climate catastrophe pose ethical problems (...) for widely used IAMs. The main claim is that economists who ignore or downplay catastrophic risks in their representations of uncertainty likely fall afoul of ethical constraints on scientists acting as policy advisors. Such scientists have duties to honestly articulate uncertainties and manage (some) inductive risks, or the risks of being wrong in different ways. (shrink)

The urgent importance of dealing with the climate crisis has led some influential theorists to argue that at least some demands for justice must give way to pragmatic and strategic considerations. These theorists (Cass Sunstein, Eric Posner, and David Weisbach, all academic lawyers, and John Broome, an academic philosopher) contend that the failures of international negotiations and other efforts to change economic policies and practices have shown that moral exhortations are worse than ineffective. Although Broome's position is similar (...) in these respects to that of Sunstein, Posner and Weisbach, it differs in other important respects, including his understanding of the idea of justice, his disagreement with the policy approach (which he calls "efficiency with sacrifice") favored by the economists Nicholas Stern and William Nordhaus, and his proposal for establishing a new international financial institution, a World Climate Bank, in addition to putting a price on carbon. Elsewhere I offer a critical analysis of the position taken by Posner and Weisbach in their book, Climate Change Justice. Their arguments against allowing principles of distributive justice (narrowly understood) to constrain treaty negotiations fail to rule out the principles of John Rawls' Law of Peoples (which is a conception of the moral basis of a just international order, including states' obligations to secure basic human rights for all). Therefore their arguments against shaping climate treaties to reflect any principles of justice do not succeed in supporting their position. Here I offer a critical analysis of Broome's position. I raise and discuss objections to Broome's proposal for a WCB, and I argue that the continued relevance of these objections is contingent on how the proposal for a WCB may get developed. (shrink)

The images of human suffering from New Orleans in the aftermath of Hurricane Katrina remain seared in our nation's collective memory. More than 8 years on, the city and its African-American population still have not recovered fully. This reality highlights an important truth: the disturbances that accompany climate change will first and foremost affect minority communities, many of whom are economically disadvantaged. This paper: (1) describes how Hurricane Katrina, an example of the type of natural disaster that will (...) become more prevalent with intensifying climate change, has impacted the black community of New Orleans; (2) explores the notion that African Americans, in the midst of racial oppression, have developed a unique and powerful brand of environmental thought that has much to contribute to mainstream environmentalism; and (3) argues that the voice of the black community, which has a vested interest in climate outcomes, is critically needed in today's climate debate. (shrink)

Several areas of welfare economics seek to evaluate states of affairs as a function of interpersonally comparable individual utilities. The aim is to map each state of affairs onto a vector of individual utilities, and then to produce an ordering of these vectors that can be represented by a mathematical function assigning a real number to each. When this approach is used in intertemporal contexts, a central theoretical question concerns the evaluative weight to be applied to utility coming at (...) different times. This question concerns the rate of pure time preference, which is one key determinant of the social discount rate. This article argues that the standard philosophical account of pure time preference is mistaken, because it ascribes to economists a methodological commitment they need not, and often do not, accept. This in turn undercuts the most common philosophical objection to pure time preference, which traces at least to Rawls’s A Theory of Justice. The article then evaluates three further objections to pure time preference, concluding that it might still be defensible under certain circumstances. The article closes by articulating a final argument that is suggested by the “Social, Economic and Ethical Concepts and Methods” chapter of the most recent Intergovernmental Panel on Climate Change report. If this further argument is sound, it would constitute a decisive objection to pure time preference as it currently figures in much intertemporal welfare economics. (shrink)

Language, one of humanity’s major transformative innovations, is foundational for many cultural, artistic, scientific, and economic advancements, including the creation of artificial intelligence (AI). However, in the fight against climate change, the power of such innovation is constrained due to the boring language of climate science and science communication. In this essay, we encapsulated the situation and risks of boring language in communicating climate information to the public and countering climate denialism and disinformation. Based on (...) the Serendipity-Mindsponge-3D knowledge management framework, we recommend several strategies for climate scientists and science communicators to be more creative and make their communication more interesting, including collaboration with other cultural sectors (e.g., stand-up comedians, climate fiction, etc.) and AI. (shrink)

The urgent need to address climate change poses a range of complex moral and practical concerns, not least because rising to the challenge will require cooperation among countries that differ greatly in their wealth, the extent of their contributions to the problem, and their vulnerability to environmental and economic shocks. This thesis by publication in the field of climate ethics aims to characterise a range of national responsibilities associated with acting on climate change (Part I), (...) and to identify proposals for fulfilling those responsibilities through fair and feasible institutional arrangements (Part II). I aim not only to address substantive gaps in scholarly understanding of those responsibilities, but also to strengthen the ability of climate ethics to engage meaningfully with climate policy. Chapter 2 addresses the question of whether wealthy countries owe a “climate debt” to poor countries. It finds that even if climate debt (suitably interpreted) may provide a coherent and morally plausible concept, its political value as a discursive frame that can provide a basis for cooperation is limited. Chapter 3 investigates the role that equity may play in negotiations on a long-term climate change agreement. It argues that developed and developing countries may reach a “principled bargain” if both converge on a way of differentiating their responsibilities that places less emphasis on a rigid dichotomy between the two groups and more emphasis on objective criteria relating to their contribution to the problem and capacity to address it. Chapter 4 explores a question largely overlooked in climate ethics, namely whether wealthy countries owe compensation to those who are adversely affected by the climate policies which they enact. I find that enacting countries have responsibilities to compensate both domestic and foreign citizens who would suffer disproportionate losses from the effects of policies. Chapter 5 assesses whether wealthy countries may legitimately adopt unilateral (or “fragmented”) rather than multilaterally coordinated approaches to raising climate finance for developing countries. It finds that coordinated target-setting, effort sharing and oversight arrangements are essential, but that a mix of unilateral and coordinated approaches to raising funds will be necessary for securing legitimacy. In Chapter 6, through addressing the broader question of what should count as official aid, I consider whether wealthy countries may draw on aid budgets to support developing countries’ efforts to address climate change. I find that the current definition of official aid should be retained but supplemented by specified exclusions from eligibility in order to preserve the aid regime’s integrity. Nevertheless, some climate finance may justifiably be counted as aid provided that concerns relating to the diversion of aid funding are addressed. In addressing these research questions, the thesis seeks not only to make original theoretical contributions to climate ethics but also to strengthen broader scholarly understanding of the ways in which ethics and international public policy may inform one another, particularly by highlighting the role of framing considerations (Chapter 2), feasibility considerations (Chapter 3), and the ways in which principles of fairness and legitimacy map onto institutional functions (Chapters 4, 5 and 6). (shrink)

Climatology is a paradigmatic complex systems science. Understanding the global climate involves tackling problems in physics, chemistry, economics, and many other disciplines. I argue that complex systems like the global climate are characterized by certain dynamical features that explain how those systems change over time. A complex system's dynamics are shaped by the interaction of many different components operating at many different temporal and spatial scales. Examining the multidisciplinary and holistic methods of climatology can help us (...) better understand the nature of complex systems in general. -/- Questions surrounding climate science can be divided into three rough categories: foundational, methodological, and evaluative questions. "How do we know that we can trust science?" is a paradigmatic foundational question (and a surprisingly difficult one to answer). Because the global climate is so complex, questions like "what makes a system complex?" also fall into this category. There are a number of existing definitions of `complexity,' and while all of them capture some aspects of what makes intuitively complex systems distinctive, none is entirely satisfactory. Most existing accounts of complexity have been developed to work with information-theoretic objects (signals, for instance) rather than the physical and social systems studied by scientists. -/- Dynamical complexity, a concept articulated in detail in the first third of the dissertation, is designed to bridge the gap between the mathematics of contemporary complexity theory (in particular the formalism of "effective complexity" developed by Gell-Mann and Lloyd [2003]) and a more general account of the structure of science generally. Dynamical complexity provides a physical interpretation of the formal tools of mathematical complexity theory, and thus can be used as a framework for thinking about general problems in the philosophy of science, including theories, explanation, and lawhood. -/- Methodological questions include questions about how climate science constructs its models, on what basis we trust those models, and how we might improve those models. In order to answer questions about climate modeling, it's important to understand what climate models look like and how they are constructed. Climate model families are significantly more diverse than are the model families of most other sciences (even sciences that study other complex systems). Existing climate models range from basic models that can be solved on paper to staggeringly complicated models that can only be analyzed using the most advanced supercomputers in the world. I introduce some of the central concepts in climatology by demonstrating how one of the most basic climate models might be constructed. I begin with the assumption that the Earth is a simple featureless blackbody which receives energy from the sun and releases it into space, and show how to model that assumption formally. I then gradually add other factors (e.g. albedo and the greenhouse effect) to the model, and show how each addition brings the model's prediction closer to agreement with observation. After constructing this basic model, I describe the so-called "complexity hierarchy" of the rest of climate models, and argue that the sense of "complexity" used in the climate modeling community is related to dynamical complexity. -/- With a clear understanding of the basics of climate modeling in hand, I then argue that foundational issues discussed early in the dissertation suggest that computation plays an irrevocably central role in climate modeling. "Science by simulation" is essential given the complexity of the global climate, but features of the climate system--the presence of non-linearities, feedback loops, and chaotic dynamics--put principled limits on the effectiveness of computational models. This tension is at the root of the staggering pluralism of the climate model hierarchy, and suggests that such pluralism is here to stay, rather than an artifact of our ignorance. Rather than attempting to converge on a single "best fit" climate model, we ought to embrace the diversity of climate models, and view each as a specialized tool designed to predict and explain a rather narrow range of phenomena. Understanding the climate system as a whole requires examining a number of different models, and correlating their outputs. This is the most significant methodological challenge of climatology. -/- Climatology's role contemporary political discourse raises an unusually high number of evaluative questions for a physical science. The two leading approaches to crafting policy surrounding climate change center on mitigation (i.e. stopping the changes from occurring) and adaptation (making post hoc changes to ameliorate the harm caused by those changes). Crafting an effective socio-political response to the threat of anthropogenic climate change, however, requires us to integrate multiple perspectives and values: the proper response will be just as diverse and pluralistic as the climate models themselves, and will incorporate aspects of both approaches. I conclude by offering some concrete recommendations about how to integrate this value pluralism into our socio-political decision making framework. (shrink)

There appear to be few ways available to improve the prospects for international cooperation to address the threat of global warming within the very short timeframe for action. I argue that the most effective and plausible way to break the ongoing pattern of delay in the international climate regime is for economically powerful states to take the lead domestically and demonstrate that economic welfare is compatible with rapidly decreasing GHG emissions. However, the costs and risks of acting first can (...) be very large. This raises the question of whether it is fair to expect some states to go far ahead of others in an effort to improve the conditions for cooperation. I argue that a costly obligation to act unilaterally and to accept weak initial reciprocity can be justified and does not violate standards of fair burden sharing. Rather, the costs of creating the underlying conditions within which we can hope to achieve meaningful international cooperation are non-­‐ideal burdens for which we can appropriately assign fair shares. (shrink)

In Climate Leviathan, Mann and Wainwright address the political implications of climate change by theorizing four possible planetary futures: Climate Leviathan as capitalist planetary sovereignty, Climate Mao as non-capitalist planetary sovereignty, Climate Behemoth as capitalist non-planetary sovereignty, and Climate X as non-capitalist non-planetary sovereignty. The authors of the present article agree that the depth and scale of destabilizations induced by climate change cannot be navigated justly from within the present social-political-economic system. (...) We disagree, however, on which of the non-capitalist orientations is better suited for generating viable alternatives to the worst dystopian futures. The article thus stages a debate to elucidate the theoretical and political divergence between Climate X and Climate Mao. (shrink)

This paper discusses some ethically relevant aspects of William Nordhaus’s contribution to climate change policy evaluation. Nordhaus's approach can shed light on one—but only one—dimension of the climate change problem. His boldest claims notwithstanding, there is nothing particularly "optimal" about the temperature increases associated with his most famous modeling choices.

[Blog Post] This blog post (1) introduces a fundamental debate in climate ethics (polluter pays v beneficiary pays v ability to pay principles) while (2) arguing for a new principle (polluter pays, then receives, or PPTR/"Peter", principle).

Many governments are failing to act sufficiently strongly on climate change. Given this, what should motivated affluent individuals in high-consumption societies do? This paper argues that social norms are a particularly valuable target for individual climate action. Within norm-promotion, the paper makes the case for a focus on anti-fossil fuel norms specifically. Section 1 outlines gaps in the existing literature on individuals’ climate change obligations. Section 2 characterises social norms. Section 3 provides seven reasons why (...) social norms are a particularly worthy target for individual climate actors. Section 4 asks which social norms individuals should emphasise, arguing that anti-fossil fuel norms have advantages over emissions reduction and offsetting norms. Section 5 outlines the pathways and mechanisms individuals might exploit to promote anti-fossil fuel norms. (shrink)

Exploitation and Economic Justice in the Liberal Capitalist State offers the first new, liberal theory of economic justice to appear in more than 30 years. The theory presented is designed to offer an alternative to the most popular liberal egalitarian theories of today and aims to be acceptable to both right and left libertarians too.

Climate change is an existential risk reinforced by ordinary actions in afuent societies—often silently present in comfortable and enjoyable habits. This silence is sometimes broken, presenting itself as a nagging reminder of how our habits fuel a catastrophe. As a case in point, global warming has created a state of urgency among wine makers in Spain, as the alcohol level has risen to a point where it jeopardises wine quality and thereby Spanish viticulture. Eforts are currently being made (...) to solve this problem technologically by developing (non-GMO) strains of yeast that produce less alcohol. If successful, this could help save Spanish viticulture. This kind of technological solution is routinely criticised for ofering simplistic “techno-fx” solutions to solve complex societal problems. However, it is not clear what features are criticised by the notion of techno-fx and hence how to avoid this criticism. In our interpretation, the techno-fx notion is not exclusively used as a dismissive term. The notion points to a general virtue of engineering: to create technological solutions that work silently in the background. This asset of technological solutions might sometimes be problematic and sometimes not. Hence, it needs to be analysed case-by-case by paying attention to the moral relevance of the hidden implications of the technology and of the unrefective actions and habits that they facilitate. Such moral analysis will in turn inform strategies for foregrounding this technology to counteract silencing. We discuss what this means in the case of modifying yeast as a viticultural climate resilience strategy. (shrink)

Forests play fundamental roles in the Earth’s ecosystems. With the great capability of carbon sequestration, tropical forests are expected to contribute substantially to reducing the CO2 in Earth’s atmosphere. However, global tropical forest areas have declined drastically over the last few decades due to pressures from socio-economic development pursuit. The current essay aims to demonstrate the ongoing global deforestation crisis and its underlying drivers and discuss the vital roles of tropical forests in the socio-economic development in the face of (...) class='Hi'>climate change when developed countries start to tighten the carbon emission control regulations (e.g., European Union’s Carbon Border Adjustment Mechanism). It suggests why developing countries in tropical regions, particularly Vietnam, should not sacrifice forests for short- and medium-term socio-economic goals but capitalize on them to leverage long-term development. Moreover, evidence of Vietnamese political leaders’ commitment to forest protection and sustainable development is also provided. (shrink)

To become more useful and efficient in sustaining the Earth's health, economics must undergo a paradigm shift in its thinking. From a humanistic perspective, humans should be the center of everything. However, from the standpoint of physics and the universe, this is not the case. As a species, having a planet among the millions in the universe where humans can survive and thrive is already a great fortune. Through this book, we also try to answer one of our long-standing (...) questions: why has economics learned so little from physics, the oldest and most rigorous academic discipline that studies nature? -/- Learning from the quantum and information theories, we also provide a new definition of value, which is expected to help economists relax assumptions and loosen established economic principles in order to change and evolve. The new definition is also expected to enable social scientists to address newly arising phenomena or events that are not accounted for by existing value systems, such as environmental crises, artificial intelligence (AI), and interdisciplinary information, more proactively and productively. (shrink)

‘Deep adaptation’ refers to the personal and collective changes that might help us to prepare for – and live with – a climate-influenced breakdown or collapse of our societies. It is a framework for responding to the terrifying realization of increasing disruption by committing ourselves to reducing suffering while saving more of society and the natural world. This is the first book to show how professionals across different sectors are beginning to incorporate the acceptance of likely or unfolding societal (...) breakdown into their work and lives. They do not assume that our current economic, social and political systems can be made resilient in the face of climate change but, instead, they demonstrate the caring and creative ways that people are responding to the most difficult realization with which humanity may ever have to come to terms. Edited by the originator of the concept of deep adaptation, Jem Bendell, and a leading climate activist and strategist, Rupert Read, this book is the essential introduction to the concept, practice and emerging global movement of Deep Adaptation to climate chaos. (shrink)

Why, if at all, should we object to economic inequality? Some central arguments – the argument from decreasing marginal utility for example – invoke instrumental reasons and object to inequality because of its effects. Such instrumental arguments, however, often concern only the static effects of inequality and neglect its intertemporal conse- quences. In this article, we address this striking gap and investigate income inequality’s intertemporal consequences, including its potential effects on humanity’s (very) long-term future. Following recent arguments around future generations (...) and so-called longtermism, those effects might arguably matter more than inequality’s short-term con- sequences. We assess whether we have instrumental reason to reduce economic inequality based on its intertemporal effects in the short, medium, and the very long term. We find a good short and medium-term instrumental case for lower economic inequality. We then argue, somewhat speculatively, that we have instrumental reasons for inequality reduction from a longtermist perspective too, primarily because greater inequality could increase existential risk. We thus have instrumental reasons to reduce inequality, regardless of which time-horizon we take. We then argue that from most consequentialist perspectives, this pro tanto reason also gives us all-things-considered reason. And even across most non-consequentialist views in philosophy, this argument gives us either an all-things-considered or at least weighty pro tanto reason against inequality. (shrink)