Ewan Kingston

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 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.

Our thesis is that there is no moral requirement to refrain from emitting reasonable amounts of greenhouse gases solely in order to enjoy oneself. Joyriding in a gas guzzler provides our paradigm example. We first distinguish this claim that there is no moral requirement to refrain from joyguzzling from other more radical claims. We then review several different proposed objections to our view. These include: the claim that joyguzzling exemplifies a vice, causes or contributes to harm, has negative expected value, exceeds our fair share of global emissions, and undermines political duties. We show why none of these objections succeeds and conclude that no good reason has yet been proposed that shows why joyguzzling violates a moral requirement.

Dale Jamieson has claimed that conventional human-directed ethical concepts are an inadequate means for accurately understanding our duty to respond to climate change. Furthermore, he suggests that a responsibility to respect nature can instead provide the appropriate framework with which to understand such a duty. Stephen Gardiner has responded by claiming that climate change is a clear case of ethical responsibility, but the failure of institutions to respond to it creates a (not unprecedented) political problem. In assessing the debate between Gardiner and Jamieson, I develop an analysis which shows a three-part structure to the problem of climate change, in which the problem Gardiner identifies is only one of three sub-problems of climate change. This analysis highlights difficulties with Jamieson’s argument that the duty of respect for nature is necessary for a full understanding of climate ethics, and suggests how a human-directed approach based on the three-part analysis can avoid Jamieson’s charge of inadequacy

Many people argue that we should practice conscientious consumption. Faced with goods from gravely flawed production processes, such as wood from clear-cut rainforests or electronics containing conflict minerals, they argue that we should enact personal policies to routinely shun tainted goods and select pure goods. However, consumers typically should be relatively uncertain about which flaws in global supply chains are grave and the connection of purchases to those grave flaws. The threat of significant uncertainty makes conscientious consumption appear to be no better, or even worse, than an overlooked option. This overlooked option is consumption with relinquishment: disregarding each product’s possible connections with upstream grave flaws and using the time, money, and energy saved in this way to address grave flaws directly.

One of the missing elements in the Paris Agreement is a formal mechanism by which reputational effects on countries can be generated and amplified, a mechanism analogous to, for example, the Universal Periodic Review in the international human rights legal regime. While the Paris Agreement provides a basic expectation on countries to submit increasingly ambitious NDCs every five years, there is no forum in the United Nations Framework Convention on Climate Change (UNFCCC) through which the ambition of countries’ NDCs can be directly compared.

Deep decarbonization – slashing global greenhouse gas emissions to net-zero – now dominates global climate policy. Two recent books assess feasible routes to achieve deep decarbonization. Bill Gates’ How to Avoid a Climate Disaster explains in depth why deep decarbonization requires significant innovations in tech, and Danny Cullenward and David Victor’s Making Climate Policy Work emphasizes the importance of policy innovation (beyond carbon pricing) for driving clean tech breakthroughs. In this critical review essay, I summarize and assess both books. In the final section, I raise several normative questions, which the pair of books might lead us to.