There is mounting evidence of the impact of climate change on human habitat and health, on plant and animal life, on water resources and shorelines. These changes are felt unevenly within – and between – nations and communities. This is due to differences in access to resources, infrastructure, social structure, and government policy. Climate change is, and will continue to be, most severely felt by the poorest people in any population, particularly those living in poorly-resourced, isolated and extreme environments.