*Editorial note: This story is the closing chapter of The Kingfisher Story Collection (3rd Ed.) [1]. It was translated by Minh-Hoang Nguyen from the original Vietnamese version.

Wastewater treatment plants (WWTPs) play a critical role in safeguarding public health and environmental quality. However, they are also notable sources of greenhouse gas (GHG) emissions, particularly carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O). Traditional methods for monitoring these emissions—such as point sampling and flux chambers—are often labor-intensive, spatially limited, and lack the temporal resolution needed to capture the dynamic nature of gas fluxes in real-time.

Canada, home to nearly one-quarter of the world’s peatlands, holds an estimated 150 gigatonnes of carbon in these waterlogged soils [2]. Despite their ecological significance, a growing share of these landscapes is being altered for agriculture—particularly in southern regions [3]. This transformation releases greenhouse gases (GHGs) that have long gone underreported, raising concerns about the climate consequences of land use decisions in a warming world [4].

“Throw away anything that sounds too complicated. Only keep what is simple to grasp...If the information appears fuzzy and causes the brain to implode after two sentences, toss it away and stop listening. Doing so will make the news as orderly and simple to understand as the truth.” - In “GHG emissions,” The Kingfisher Story Collection, (Vuong 2022a).

Obligations to reduce one’s green house gas emissions appear to be difficult to justify prior to large-scale collective action because an individual’s emissions have virtually no impact on the environmental problem. However, I show that individuals’ emissions choices raise the question of whether or not they can be justified as fair use of what remains of a safe global emissions budget. This is true both before and after major mitigation efforts are in place. Nevertheless, it remains (...) difficult to establish an obligation to reduce personal emissions because it appears unlikely that governments will in fact maintain safe emissions budgets. The result, I claim, is that under current conditions we lack outcome, fairness, promotional, virtue or duty based grounds for seeing personal emissions reductions as morally obligatory. (shrink)

Technological visionaries often paint a future powered by clean energy, yet these optimistic visions tend to overlook the messy socio-political realities of such transitions. As A Just Transition for All: Workers and Communities for a Carbon-Free Future (MIT Press) powerfully illustrates, there is a vast difference between a so-called ‘just’ transition and one that is genuinely just. This book offers a much-needed, thought-provoking, and meticulously documented exploration of how political and business leaders can ensure fairness for all stakeholders—especially vulnerable workers (...) and their communities—as the world shifts toward a carbon-free future. -/- "As time passes, news about the now hotter Earth buzzes through the bird village. Those kingfishers residing along the banks of the Red River often report drying riverbeds and skinny fish. As Kingfisher casts his gaze upon the events that have unfolded, he can’t help but feel a sense of unease creeping up within him. He decides to collect all the scientific information concerning climate change and greenhouse gas emissions. An elite squad with a unique talent for gathering vital information is formed for emergency information collection." -In GHG emissions, Wild Wise Weird: The Kingfisher Story Collection, Vuong (2025)- . (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)

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)

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)

A book chapter (about 9,000 words, plus references) presenting an act-consequentialist approach to the ethics of climate change. It begins with an overview of act consequentialism, including a description of the view’s principle of rightness (an act is right if and only if it maximizes the good) and a conception of the good focusing on the well-being of sentient creatures and rejecting temporal discounting. Objections to act consequentialism, and replies, are also considered. Next, the chapter briefly suggests that act consequentialism (...) could reasonably be regarded as the default moral theory of climate change, in the sense that a broadly act-consequentialist framework often seems implicit in both scholarly and casual discussions of the ethics of climate change. The remainder of the chapter explores three possible responses to the threat of climate change: having fewer children to reduce the number of people emitting greenhouse gases; taxing greenhouse-gas (GHG) emissions (commonly called a “carbon tax”) to discourage GHG-emitting behavior; and reducing poverty to lessen personal, familial, and community vulnerability to the harms of climate change. (shrink)

In Why Information Grows, the complexity researcher César Hildago provides a compelling account of the growth of information in the universe [1]. Drawing on wide-ranging theories of statistical mechanics, the field of economic sociology, the theory of social capital, and the emerging science of complexity economics, Hildago argues information can grow in the universe whose law seems to favor the growth of entropy because of the following three conditions: out-of-equilibrium systems, solids, and the computational abilities of matters. These conditions are (...) the foundation for the emergence of the ultimate computer, human economy, which can be viewed as a distributed computing networks that seek to generate embodiment of information (“crystals of imagination” (p.50)) that satisfy human needs and desires. -/- First: Just listen to scientific news, but the environmental intelligence birds must keep the information simple. Throw away anything that sounds too complicated. Only keep what is simple to grasp. Keep whatever news that seems friendly to the ears. If the information appears fuzzy and causes the brain to implode after two sentences, toss it away and stop listening. Doing so will make the news as orderly and simple to understand as the truth! -In GHG emissions, Wild Wise Weird: The Kingfisher Story Collection, Vuong (2025) [0]-. (shrink)

Citation: Braun G, Hellwig MK, Byrnes WM (2007) Global Climate Change and Catholic Responsibility: Facts and Faith Response. Journal of Catholic Social Thought 4(2): 373-401. Abstract: The scientific evidence is now overwhelming that human activity is causing the Earth’s atmosphere to grow hotter, which is leading to global climate change. If current rates of greenhouse gas (GHG) emissions continue, it is predicted that there will be dramatic changes, including flooding, more intense heat waves and storms, and an increase in (...) disease. Indigenous peoples and the poor will be most severely affected, as will Earth’s wild animals and plants, a quarter of which could become extinct in fifty years. We urgently need to switch to renewable (non-GHG emitting) energy sources, and try to live in a simpler, more sustainable way. In this article, a renewable energy expert, a biochemist, and a theologian have come together to describe the situation in which we find ourselves, and present ideas for a solution that incorporates Catholic social teaching. (shrink)

Climate change presents the agricultural and agro-industrial sectors with formidable challenges in meeting the food demands of the world population. What could be the role of those agricultural productions with no or negligible nutritional value but high economic value, like floriculture and wine production? We look at the case of the wine industry and the role it may play in an agro-industrial sector that needs to tackle the challenge of feeding the world under climate change circumstances. The wine industry may (...) be accused of competing with other more important agricultural products for land, water (at least in some countries), fertilisers, etc. while producing a luxury product with limited nutritional value, as well as producing considerable GHG emission per bottle (including the various stages of farming, winemaking and marketing). Yet, viticulture and winemaking may contribute to the resilience of local agricultural systems and provide inspiring examples, know-how and capital resources. The wine sector has a deep connection with locality, is considerably vulnerable to global warming and has repeatedly shown the capacity to be a fly-wheel for the local economy and its agricultural and tourist sector. These features may be important assets in boosting the resilience of local agricultural systems under global warming stress. I put forward some ethical commitments and conditions that concerned wine producers and consumers need to meet in order to contribute to the sustainability and resilience of local agricultural systems. Since the high economic value of wine is so closely intertwined with its cultural and symbolic value, success needs the joint effort of producers, consumers and wine critics, which share responsibility in reorienting the sector towards supporting agricultural resilience. (shrink)

The climate crisis is more than a looming threat in the 21st century, despite how often its reality is debated and denied. Greenhouse gases trap heat around the Earth, driving changes in global climates, presently causing losses that global systems, economies, and families aren’t prepared for. As wealthy countries in the West monopolise and exceed the allowances for global greenhouse gas (GHG) emissions, the rest of the world is bearing the brunt of climate change with little responsibility for the (...) effects. In this pivotal time where active progress is necessary around the climate crisis, the biologist must take the role of researcher and communicator, but especially advocate. (shrink)

Climate change and livestock production are deeply interconnected. Livestock contributes significantly to climate change while simultaneously being heavily impacted by it, creating a critical sustainability challenge for our planet. Globally, livestock are responsible for about 14.5% of anthropogenic greenhouse gas (GHG) emissions, primarily methane and nitrous oxide, which are potent warming agents. Methane, produced during the digestive process (enteric fermentation) of ruminants like cattle, sheep, and goats, accounts for a significant portion of livestock emissions. Nitrous oxide emissions (...) mainly arise from manure management and fertilization processes in feed production. Additionally, land-use changes, driven by increasing demands for grazing and feed crops, further exacerbate carbon emissions. (shrink)

Abstract— According to studies, buildings use around 40% of the total energy consumption in the world. Most of this consumed energy comes from fossil fuel, one of the sources of environmental pollution. The Net Zero Energy Building (NZEB) is an alternative to this alarming pollution. With its reduced energy needs and renewable energy systems, a ZEB can return as much energy as it takes from the utility on an annual basis. Thus the main objective of this study is to discuss (...) the economical and friendly environmental renewable energy system integrated to building in Egypt to be (NZEB) economical by maximizing the renewable energy fraction and minimizing the greenhouse gases (GHG) emissions. The system consists of two renewable energy sources, comprising photovoltaic system, a wind turbine are considered for the proposed building under the study. By Utilizing the well-known Hybrid Optimization of Multiple Electric Renewables software to get the optimal configuration of a hybrid renewable energy system, based on the user inputs of loads, costs, technical details, solar and wind resources availability. (shrink)

Heavy-duty non-road mobile machinery (NRMM)—including forest harvesters, bulldozers, and agricultural tractors—are significant sources of greenhouse gas (GHG) emissions, accounting for approximately 9% of Finland’s emissions within the Effort Sharing Sector (ESS). As global climate targets, such as the European Union’s commitment to achieve net-zero emissions by 2050, come into sharper focus, the need to decarbonize these essential industrial machines has become increasingly urgent.

The North Atlantic Oscillation (NAO)—a key atmospheric pressure system influencing winter weather across Europe and North America—is projected to intensify dramatically by the end of the century unless greenhouse gas (GHG) emissions are significantly reduced [2,3]. In a new study, Smith et al. [4] reveal that current climate models may be underestimating the risk of unprecedented multi-decadal NAO changes due to systematic errors in representing atmospheric processes, particularly the distribution of water vapor.

The Canadian oil sands industry, a major emitter within the national economy, has pledged to achieve net-zero greenhouse gas (GHG) emissions from its operations by 2050. A recent study by McGaughy et al. [2] evaluates the current emissions intensity of oil sands production and examines the mitigation potential of emerging technologies using life-cycle assessment (LCA) tools and data from 11 industry stakeholders.

“As time passes, news about the now hotter Earth buzzes through the bird village. […] As Kingfisher casts his gaze upon the events that have unfolded, he can’t help but feel a sense of unease creeping up within him. He decides to collect all the scientific information concerning climate change and greenhouse gas emissions.” -/- —In “GHG Emissions”; The Kingfisher Story Collection.

In this paper, we aim to provide an in-depth discussion of nickel's crucial position in the manufacturing sector in the context of the United Nations' Sustainable Development Goals (SDGs), which represent growing environmental imperatives. These SDGs have gained unprecedented urgency due to looming concerns of incompletion. It should be emphasized that the information compiled herein is derived from authoritative sources and is limited in its ability to give comprehensive coverage within the scope of this article. The raised issues are of (...) broad interest in terms of environmental dynamics in the global nickel mining, extraction, and refining arenas. As a result, the content given below may not precisely comply with the local situations dictated by geographical, geological, and socio-economic characteristics. The fundamental goal of this discussion is to clarify the economic-environmental interaction and the pragmatic meanings of the term "sustainable" in the context of the nickel industry. (shrink)

In their ‘Ethical and Technical Challenges in Compensating for Harm Due to Solar Radiation Management Geoengineering’ (2014), Toby Svoboda and Peter Irvine (S&I) argue that there are significant technical and ethical challenges that stand in the way of crafting a just solar radiation management (SRM) compensation system. My aim in this article is to contribute to the project of addressing these problems. I do so by focusing on one of S&I’s important ethical challenges, their claim that the polluter pays principle (...) (PPP) is too problematic to be useful in determining responsibility for SRM compensation. Their argument for the latter claim consists in a series of allegations, mostly in the form of questions, that are thought to indicate serious difficulties standing in the way of using the PPP to craft a just compensation system. I argue that S&I fail to substantiate these allegations: the PPP is not as problematic as S&I suggest, and moreover, is a viable candidate for determining responsibility for SRM compensation. S&I raise five allegations against the PPP. I discuss each in turn. (shrink)

Hiện tượng băng tan ở Nam Cực đang ngày càng nguy hiểm với sức khỏe Trái Đất nói chung, và các cộng đồng cư dân bao gồm cả con người nói riêng. Nghe thì xa xôi vậy, nhưng tác động đang trở nên gần hơn bao giờ hết. Về mặt chu kỳ thời tiết, theo quy luật tự nhiên, giai đoạn hiện nay đáng ra phải là thời kỳ Trái Đất dịu mát đi. Thế nhưng trên thực tế, nhiệt độ (...) lại đang gia tăng. Suốt ba thập niên vừa qua, nhiệt độ Trái Đất liên tục tăng ở các mức kỷ lục chưa từng thấy kể từ khi dữ liệu bắt đầu được thống kê. (shrink)

ABSTRACT Offsetting is a very ineffective way to do good. Offsetting your lifetime emissions may increase aggregated life expectancy by at most seven years, while giving the amount it costs to offset your lifetime emissions to a malaria charity saves in expectation the life of at least one child. Is there any moral reason to offset rather than giving to some charity that does good so much more effectively? There might be such a reason if your offsetting compensated (...) or somehow benefitted the victims of your emission, since that could mean that you would satisfy the duty not to harm others by emitting and offsetting. But that is typically not true. If your emission harms some person and your offsetting benefits some person, then these are most likely different people. Hence, I conclude, we have a stronger reason to give to effective charities than we have to offset our emissions. (shrink)

In discussions about responsibility for climate change, it is often suggested that the historical use of natural resources is in some way relevant to our current attempts to address this problem fairly. In particular, both theorists and actors in the public realm have argued that historical high-emitters of greenhouse gases (GHGs) – or the beneficiaries of those emissions – are in possession of some form of debt, deriving from their overuse of a natural resource that should have been shared (...) more equitably. These accounts of what might be termed ‘natural debt’ generally focus on one particular natural resource (global GHG sink capacity); invoke a principle of justice by which rights to consume this resource should have been allocated (most commonly, equal per capita shares); and then argue that historical violations of this principle give rise to certain rectificatory duties in the present (generally, duties on the part of those who have historically consumed an excessive amount of the world’s GHG sink capacity, or who have benefitted from such excess consumption, to offer some form of compensation to those who have not – such compensation usually taking the form of emission credits or cash). Though many seem to find it intuitively plausible that historical high-emissions have incurred some form of debt, significant challenges arise in rendering the concept of natural debt both coherent and defensible. Such problems are not, however, my focus in this piece. Instead, I here suggest that discussions about historical responsibility for climate change commonly fail to recognise certain other past injustices concerning natural resources that appear to hold contemporary relevance. In particular, I argue that it is not just the unequal consumption of global GHG sink capacity that may be of moral significance here; but also the way in which the world’s resources have more generally been governed. (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)

The global Climate Change has unprecedented consequences in terms of scale and severity over human life. The accumulation of greenhouse gases and CFCs has increased environmental deterioration which is called global warming. Erratic changes in weather, brutal blizzards and floods, vicious heat wave etc. are only some of the effects of climate change. But the most dangerous effect of climate change is the melting of ice caps on the poles due to which sea levels are rising dangerously and life at (...) the poles is threatened. It is also a reality that habitation in several countries , not very much above the sea-level, for example, Maldives, Sri Lanka, Bangladesh and Indonesia, which have a threat of huge displacement of human beings and domestic animals due to global warming. The survival of millions of people in developing countries like India is more vulnerable to the negative impacts of climate change because of their limited capacity in terms of human financial and institutional resources. India is the world’s fourth largest economy and fifth largest greenhouse gas (GHG) emitter, accounting for about 5% of global emissions. India’s emissions increased 65% between 1990 and 2005 and are projected to grow another 70% by 2020. The major impacts of Climate Change on India are major shifts in temperature, effect on monsoons, rising of sea levels, change in crop cycle, etc. India has prepared the National Action Plan on Climate Change (NAPCC) in 2008 for energy efficiency and sustainable development. India is a part to the United Nations Framework Convention on Climate Change. Under the Ministry of Environment and Forests, a National Inventory Management System (NIMS) has been formed to generate a comprehensive knowledge base on scientific issues related to climate change and mitigation. This paper highlights the issue of impacts of climate change and measures adopted by the government to minimize the dangers. (shrink)

Emissions grandfathering holds that a history of emissions strengthens an agent’s claim for future emission entitlements. Though grandfathering appears to have been influential in actual emission control frameworks, it is rarely taken seriously by philosophers. This article presents an argument for thinking this an oversight. The core of the argument is that members of countries with higher historical emissions are typically burdened with higher costs when transitioning to a given lower level of emissions. According to several (...) appealing views in political philosophy (utilitarianism, egalitarianism, prioritarianism, and sufficientarianism) they are therefore entitled to greater resources, including emission entitlements, than those in similar positions but with lower emissions. This grandfathering may play an especially important role in allocating emission entitlements among rich countries. (shrink)

With respect to climate change, what is wanted is an account that morally condemns the production of ‘luxury’ greenhouse gas emissions (e.g., joyriding in an SUV), but not ‘subsistence’ emissions (e.g., cooking meals). Now, our individual greenhouse gas emissions either cause harm, or they do not—and those who condemn the production of luxury emissions generally stake their position on the grounds that they do cause harm. Meanwhile, those seeking to defend the moral permissibility of luxury (...) class='Hi'>emissions generally do so by arguing that our individual emissions do not cause harm. Here, I argue that, if our individual emissions do cause harm, then this entails too much. For, it entails not only that our luxury emissions are morally impermissible, but that our subsistence emissions are too. This is an undesirable result. Therefore, I propose that we embrace our other option. Namely, I propose that we accept that our individual emissions do not cause harm; or at least, that they make no perceptible difference with respect to the harms associated with climate change. The result of this admission is not as bad as you might think. For, I argue, even if we are individually causally impotent with respect to the harms of climate change, there remains a plausible route toward the moral condemnation of our individual luxury emissions—contrary to what others have argued. What is more, only by accepting our individual causal impotence can we successfully ground the permissibility of our individual subsistence emissions. (shrink)

The idea of permit trading in the United States can be traced as far back as the 1970s, but emissions trading has really only became a popular and exportable idea with the more recent demands that environmental protection acknowledge economic pressures through such ideas as sustainable development. Now the idea of emissions trading has caught on in South America, China and Europe as well. Yet in the eagerness of governments and industry to work out the technical details and (...) legal mechanics of the emissions trading tool, insufficient attention has been paid to its underlying legal and ethical assumptions. In this article, it is emphasized that emissions trading is a part of compliance with environmental law, not a market alternative to compliance. The difference between the two greatly effects and is affected by theories of rights. As part of the scheme of rights and accompanying duties, the author questions whether an implicit right to pollute has been created through emissions trading, as exemplified by the comparison of the systems in the U.S., China and Europe. (shrink)

Some philosophers are skeptical that individuals are morally blameworthy for their own greenhouse gas emissions. Although an individual’s emissions may contribute to climate change that is on the whole very harmful, perhaps that contribution is too trivial to render it morally impermissible. Against this view, there have been attempts to show that an individual’s lifetime emissions cause non-trivial harm, but in this paper I will consider what follows if it is true that an individual is not blameworthy (...) for her emissions. Specifically, I ask how a non-blameworthy emitter would best regard his or her own emissions. I will argue that the appropriate attitude to adopt here is one of agent-regret. This allows us to capture the moral disvalue of one’s emissions without entailing blame for them. *Links to the paper and video overview below.*. (shrink)

Non-technical summary: -/- When developing and deploying negative emissions technologies (NETs), little attention has been paid to where. On the one hand, one might develop NETs where they are likely to contribute most to global mitigation targets, contributing to a global climate solution. On the other hand, one might develop NETs where they can help support development on a regional basis, justified by regional demands. I defend these arguments and suggest that they reflect the values of efficiency and responding (...) to need, respectively. To the extent that these values conflict, they introduce what I call the Need-Efficiency Trade-off Effect (‘NET Effect’). -/- Technical summary: -/- Unlike other geoengineering methods, the effectiveness of negative emissions technologies (NETs) tends to be sensitive to regional siting. This paper argues that this point raises morally and legally important implications by identifying a trade-off between ‘efficiency’ and ‘need’. First, it introduces two arguments justifying NETs: one focused on contributions to global mitigation and the other focused on contributions to regional development. Second, reflecting the two arguments, the paper discusses the moral values of efficiency and need, respectively. For instance, if the strategy is to try to use NETs to maximize expected mitigation contributions to reflect efficiency, then deployment should occur in regions with the best prospects for success (e.g. Western countries). However, if the strategy is to try to use NETs to improve the chances of simultaneous development and mitigation to respond to need, then deployment should occur in regions with limited development and expected growth of demand for NETs (e.g. Asian countries). When these values conflict, I call that a Need-Efficiency Trade-off Effect (‘NET Effect’). The paper concludes by considering the NET Effect in the context of bioenergy with carbon capture and storage as well as direct air carbon capture and storage. [Open access]. (shrink)

“Since the actions I perform as an individual only have an inconsequential effect on the threat of climate change,” a common argument goes, “it cannot be morally wrong for me to take my car to work everyday or refuse to recycle.” This argument has received a lot of scorn from philosophers over the years, but has actually been defended in some recent articles. A more systematic treatment of a central set of related issues shows how maneuvering around these issues is (...) no easy philosophical task. In the end, it appears, the argument from inconsequentialism indeed is correct in typical cases, but there are also important qualificatory considerations. (shrink)

With the existing commitments to climate change mitigation, global warming is likely to exceed 2°C and to trigger irreversible and harmful threshold effects. The difference between the reductions necessary to keep the 2°C limit and those reductions countries have currently committed to is called the ‘emissions gap’. I argue that capable states not only have a moral duty to make voluntary contributions to bridge that gap, but that complying states ought to make up for the failures of some other (...) states to comply with this duty. While defecting or doing less than one’s fair share can be a good move in certain circumstances, it would be morally wrong in this situation. In order to bridge the emissions gap, willing states ought to take up the slack left by others. The paper will reject the unfairness-objection, namely that it is wrong to require agents to take on additional costs to discharge duties that are not primarily theirs. Sometimes what is morally right is simply unfair. (shrink)

Environmental ethicists have not reached a consensus about whether or not individuals who contribute to climate change have a moral obligation to reduce their personal greenhouse gas emissions. In this paper, I side with those who think that such individuals do have such an obligation by appealing to the concept of integrity. I argue that adopting a political commitment to work toward a collective solution to climate change—a commitment we all ought to share—requires also adopting a personal commitment to (...) reduce one’s emissions. On these grounds, individuals who contribute to climate change have a prima facie moral duty to lower their personal greenhouse gas emissions. After presenting this argument and supporting each of its premises, I defend it from two major lines of objection: skepticism about integrity’s status as a virtue and concerns that the resulting moral duty would be too demanding to be morally required. I then consider the role that an appeal to integrity could play in galvanizing the American public to take personal and political action regarding climate change. (shrink)

Given that mitigating climate change is a large-scale global issue, what obligations do individuals have to lower their personal carbon emissions? I survey recent suggestions by Walter Sinnott-Armstrong and Dale Jamieson and offer models for thinking about their respective approaches. I then present a third model based on the notion of structural violence. While the three models are not mutually incompatible, each one suggests a different focus for mitigating climate change. In the end, I agree with Sinnott-Armstrong that people (...) have limited moral obligations to directly lower personal emissions, but I offer different reasons for this conclusion, namely that the structural arrangements of our lives place a limit on how much individuals can restrict their own emissions. Thus, individuals should focus their efforts on changing the systems instead (e.g., the design of cities, laws and regulation, etc.), which will lead to lower emissions on a larger scale. (shrink)

Climate change and other harmful large-scale processes challenge our understandings of individual responsibility. People throughout the world suffer harms—severe shortfalls in health, civic status, or standard of living relative to the vital needs of human beings—as a result of physical processes to which many people appear to contribute. Climate change, polluted air and water, and the erosion of grasslands, for example, occur because a great many people emit carbon and pollutants, build excessively, enable their flocks to overgraze, or otherwise stress (...) the environment. If a much smaller number of people engaged in these types of conduct, the harms in question would not occur, or would be substantially lessened. However, the conduct of any particular person (and, in the case of climate change, of even quite large numbers of people) could make no apparent difference to their occurrence. My carbon emissions (and quite possibly the carbon emissions of much larger groups of people dispersed throughout the world) may not make a difference to what happens to anyone. When the conduct of some agent does not make any apparent difference to the occurrence of harm, but this conduct is of a type that brings about harm because many people engage in it, we can call this agent an overdeterminer of that harm, and their conduct overdetermining conduct. In this essay we explore the moral status of overdetermining harm. (shrink)

[Opinion] This aims to begin deliberation about investing in negative emissions technologies (NETs) by suggesting that the investment could be responsive to two particular values: need and efficiency—and that these values point us towards taking different actions. For negative emissions technologies, I suggest, we face a Need-Efficiency Tradeoff, i.e. a “NET effect”. This tradeoff also highlights several contrasts: responding to need focuses on regional and short-term moral considerations; responding to efficiency focuses on global and long-term moral considerations. [Open (...) access]. (shrink)

Can darkness be emitted? Imagine entering your workplace or home and feeling that you need darkness to reduce environmental stimuli or to have peace. Now you go to a lamp and turn it on to darken the environment for you. Is this possible? As soon as the lamp starts working, it spreads darkness and drowns all light stimuli, images and objects in the blackness it produces. And as long as this strange lamp is working, the darkness remains. And after your (...) need for darkness is satisfied, turn it off. (shrink)

In this paper, I am concerned with how healthcare systems ought to transition away from the greenhouse gas emissions that they have historically relied on to provide care. I address two questions in relation to this issue. The first is what emissions target should healthcare systems adopt? Second, is how should the burdens of mitigation be shared fairly in light of that target? I argue that sufficientarianism offers an attractive way to answer both of these questions because it (...) is better situated to strike the right balance between healthcare benefits and the costs of mitigation than rivals. Sufficiency describes the view that what is important from the perspective of distributive justice is that individuals have enough. I argue that this ideal can be used to set a threshold of enough health from which an emissions threshold can be set. Once an emissions threshold is in place, this can be used to demarcate permissible from impermissible emissions in healthcare. In turn, the emissions threshold provides guidance on which emissions are liable to mitigation and when it would be fair for healthcare to shoulder the associated burdens. Permissible emissions, on the other hand, are necessary to secure sufficiency and so healthcare's mitigation responsibilities should be altered in light of this. I also discuss various alternative methods of setting an emissions target like net zero, zero emissions, emissions grandfathering and emissions egalitarianism. I point to several issues with these approaches. (shrink)

Many suggest that we should look backward and measure the differences among various parties' past emissions of greenhouse gases to allocate moral responsibility to remedy climate change. Such backward-looking approaches face two key objections: that previous emitters were unaware of the consequences of their actions, and that the emitters who should be held responsible have disappeared. I assess several arguments that try to counter these objections: the argument from strict liability, arguments that the beneficiary of harmful or unjust (...) class='Hi'>emissions should pay, and arguments from distributive justice. I argue that none of these successfully justify a backward-looking approach to the temporally remote portion of the climate burden. (shrink)

What requirements does morality impose on us in relation to climate change? This question can be asked of individuals, of the entire global population, and of groups of various sizes in between. Given the case for accepting that we all collectively ought to be causing less climate-affecting pollution than we do, what follows from that about the moral status of the actions of members of the larger group? I examine two main ways in which moral requirements on group members can (...) derive from requirements that apply to the larger group. But neither of them seems to apply to the case of climate-affecting pollution. Perhaps this is a case where we together act wrongly, although no-one’s contribution to our doing so is wrong. (shrink)

I investigate whether any plausible moral arguments can be made for ‘grandfathering’ emission rights (that is, for setting emission targets for developed countries in line with their present or past emission levels) on the basis of a Lockean theory of property rights.

Carbon offsetting remains contentious within, at least, philosophy. By posing and then answering a general question about an aspect of the morality of carbon offsetting—Does carbon offsetting make luxury emissions morally permissible?—this essay helps to lessen some of the topic’s contentiousness. Its central question is answered by arguing and defending the view that carbon offsetting makes luxury emissions morally permissible by counteracting potential harm. This essay then shows how this argument links to and offers a common starting point (...) for further examination of offsetting across various disciplines and domains, such as policy and other branches of philosophy like the ethics of risk. (shrink)

There has been a recent resurgence of what Betsy Hartmann dubbed “the greening of hate” (blaming immigrants for environmental issues in the US). When immigrants move to the U.S., the argument goes, their CO2 emissions increase, thereby making climate change worse. Using migration from the Lower 48 to Alaska as a model, I illustrate how this anti-immigration argument has more traction than it is generally given credit for, and might be more convincing in a different situation. Nonetheless, it is (...) not convincing given the current pattern of climate emissions and prevailing justice considerations. Climate matters; how we treat each other matters, too. (shrink)

The Asian Summer Monsoon Anticyclone (ASMA) is a powerful atmospheric circulation that traps and transports air masses—and with them, pollutants—from South and East Asia into the upper troposphere and lower stratosphere (UTLS).

Abstract: This study has effectively tackled the critical challenge of accurate calorie prediction in dishes by employing a robust neural network-based model. With an outstanding accuracy rate of 99.32% and a remarkably low average error of 0.009, our model has showcased its proficiency in delivering precise calorie estimations. This achievement equips individuals, healthcare practitioners, and the food industry with a powerful tool to promote healthier dietary choices and elevate awareness of nutrition. Furthermore, our in-depth feature importance analysis has shed light (...) on the indispensable role played by specific nutritional attributes in calorie estimation. This unveiling of crucial factors provides valuable insights for further research endeavors and practical applications. Notably, this research extends its impact beyond the immediate context by making substantial contributions to the domains of nutrition science and dietary planning. It underscores the transformative potential of artificial intelligence, demonstrating how it can revolutionize our approach to food, nutrition, and health. As the world grapples with the challenges of diet-related health issues and environmental concerns, the accuracy and precision achieved in calorie prediction through neural networks represent a significant stride towards more informed and conscientious dietary practices. In this era of data-driven decision-making, our research paves the way for healthier lifestyles, heightened nutritional awareness, and a more health-conscious society. (shrink)

Much of the climate ethics discussion centers on considerations of compensatory justice and historical accountability. However, little attention is given to supporting and defending the Beneficiary Pays Principle as a guide for policymaking. This principle states that those who have benefitted from an instance of harm have an obligation to compensate those who have been harmed. Thus, this principle implies that those benefitted by industrialization and carbon emission owe compensation to those who have been harmed by climate change. Beneficiary Pays (...) is commonly juxtaposed with Polluter Pays Principle and the Ability to Pay Principle in the relevant literature. Beneficiary Pays withstands objections that raise suspicion for the latter two. (shrink)

Life is getting digital more than ever as technology improves. While the Internet is responsible for two percent of global greenhouse gas emissions, it is underestimated as a pollutant. Since public awareness is one of the most important preservation methods, it can contribute to protecting the environment from carbon emissions by raising people's understanding. In this regard, serious games, as a type of gamification transmitting educational content besides entertainment, immerse the player in enjoyment while teaching them a specific (...) topic or enhancing their skills in a field. This study proposes a serious game, taking the digital unseen carbon footprint and its effects on the landscape into the topic. The game considers SDG goals provided by the United Nations Department of Economic and Social Affairs. In this regard, the research uses SDGs 4 and 7 by providing quality education for all and access to sustainable energy by changing people's everyday habits. (shrink)

Cloud computing is revolutionizing modern computing infrastructure, but as the demand for cloud services grows, so does the energy consumption of the data centers that support them. Data centers, which house the servers that power cloud computing, are significant contributors to global carbon emissions. This paper explores strategies to achieve net-zero carbon emissions in data centers, focusing on energy efficiency, renewable energy integration, and carbon offsetting practices. The paper reviews current technologies, practices, and policies aimed at reducing the (...) carbon footprint of cloud computing and discusses emerging innovations such as green data centers, server optimization techniques, and the use of artificial intelligence (AI) for energy management. By highlighting case studies from leading companies, this paper presents a comprehensive approach to achieving sustainability in the cloud computing ecosystem. The paper concludes by emphasizing the importance of collaboration among industry stakeholders, policymakers, and consumers in accelerating the transition to net-zero emissions in the digital infrastructure sector. (shrink)