One of a series of five outputs produced under a small project for the Renewable Natural Resources and Agriculture Team of the UK Department for International Development (DFID). The objective of the project was to identify the implications of climate change for key areas of DFID’s Agricultural Policy and the Renewable Natural Resources and Agriculture (RNRA) Team portfolio and to produce a  series of practical outputs to assist the RNRA team in programme implementation and communication. This paper explores what we know about the impact of climate change on key debates around agriculture and growth and, more broadly, on agricultural growth and poverty reduction. It then reviews what the subsequent implications for the agricultural policies of donors and developing countries might be.