Discussions of harm are central in the climate ethics literature. Especially in the rapidly emerging body of work addressing the question of whether or not individuals are morally responsible for their greenhouse gas (GHG) emissions, whether or in what way individuals’ emissions are harmful is a hotly debated question. John Nolt’s recent paper, “How harmful are the average American’s greenhouse gas emissions?” illustrates the prevalence of this framing (Nolt 2011). Here I take a step back and ask what we mean (...) by the concept “harmful” when talking about climate change. I argue, as several respondents to Nolt have suggested (e.g., Attfield 2011, Odenbaugh 2011), that we should not be so quick to apply our standard .. (shrink)

Although actions of individuals do contribute to climate change, the question whether or not they, too, are morally obligated to reduce the GHG emissions in their responsibility has not yet been addressed sufficiently. First, I discuss prominent objections to such a duty. I argue that whether individuals ought to reduce their emissions depends on whether or not they exceed their fair share of emission rights. In a next step I discuss several proposals for establishing fair shares and also take practical (...) considerations into account. I conclude that individuals should not always be obliged to reduce their emissions to what is their fair share for they may depend on carbon-intensive structures. Instead, they have a Kantian imperfect duty to reduce their emissions ‘as far as can reasonably be demanded of them’. In addition, they should press governments to introduce proper regulation. At the end, I further specify both duties. (shrink)