Evidence provided by the scientific community strongly suggests that limits should be placed on greenhouse gas emissions. This means that states, firms, and individuals will have to face potentially serious burdens if they are to implement these limits. Which principles of justice should guide a global regime aimed at reducing greenhouse gas emissions originating from human activities, and most notably from CO2emissions? This is both a crucial and difficult question. Admittedly, perhaps this question is too ambitious, given the uncertainties and (...) complexities characterizing the issue of climate change. Yet, rather than listing them all at this stage, let us address the question in a straightforward manner, introducing some of these complexities as the need arises. (shrink)

To whom is egalitarian justice owed? Our fellow citizens, or all of humankind? If the latter, what form might a global brand of egalitarianism take? This paper examines some recent debates about the justification, and content, of global egalitarian justice. It provides an account of some keenly argued controversies about the scope of egalitarian justice, between those who would restrict it to the level of the state and those who would extend it more widely. It also notes the cross-cutting distinction (...) between relationists (whose views on scope are derived from a belief about which relations, practices or institutions give rise to the demands of equality) and non-relationists (who place no such importance on empirical facts about the relations between individuals). Beyond this, it sets out some of the different principles that might flow from a commitment to global egalitarianism. One of the key goals is to highlight the increasing diversity within debates on global justice, so that even those with a shared commitment to global equality may espouse different views about the justifications for equality, as well as the nature of, and proper sites for, egalitarian principles. (shrink)