 One question of justice that arises is “What account of persons” interests should be employed to evaluate the impacts of climate change?’ Such an account is needed for several reasons. First, we need it to design adaptation policies for we need to know what kind of protection people are entitled to and what interests ought to be protected. In addition to this, when we are considering proposed temperature targets we need to be able to evaluate them, and to do this we need to have some account of persons’ interests by which to compare the different possibilities. For many years the appropriate temperature target was assumed by many to be that of keeping the increase in global mean temperatures from pre-industrial times to below 2°C. However, some have campaigned for lower targets. This is reflected in the Paris Agreement (2015,  Other Internet Resources)  which specified that the target should be 