Abstract
This chapter develops an alternative defence of the climate debt claim via a broader discussion of how historical wrongdoing concerning natural resources could be relevant to climate justice. It first examines climate change as a problem of global justice, arguing that theorists should consider why some groups are more vulnerable to climate impacts than others and to what extent unequal vulnerability could be a result of historical injustice. Focusing on colonial resource exploitation as a significant example of natural resource injustice, it is argued that the legacies of such exploitation will likely be a significant contributor to present-day vulnerability in countries that have since gained formal independence. Such legacies have important implications for our understanding of climate vulnerability; render some climate duties a matter of rectificatory justice, vindicating the climate debt claim; and provide an important lesson in how similar wrongs could be perpetrated through future climate policies.