This chapter studies how the debate on climate change has evolved and how development relates to climate change. Climate change relates to development in two main ways. First, economic development is likely to exacerbate future climate change. Second, climate change as it occurs impacts on development, often negatively. The different ways in which climate change relates to development lead to different types of intervention. Climate change mitigation policies are designed to limit future climate change or reduce its impact but may themselves curtail development options. Climate change adaptation policies attempt to work with climate change and achieve development in spite of its impacts. There are also policies to cope with 'loss and damage', i.e. extreme, often irreversible, impacts which are too severe for adaptation. Lived experiences of climate change and of the effects of mitigation and adaptation policies demonstrate how their impacts result from the interaction of physical effects with existing social and power relationships, including those of gender.