The process of climate change – and the multiple natural disasters it will engender – will in all certainty add to the scale and complexity of human mobility and displacement. Thus far the international community has focused primarily on the scientific aspects of climate change, with the aim of understanding the processes at play and mitigating the impact of human activity. Yet climate change is likely to pose humanitarian problems and challenges. As such it is of direct interest to humanitarian agencies, including the Office of the United Nations High Commissioner for Refugees (UNHCR).