The overall objective of Oxfam GB's climate change campaign was to get a fair and safe global climate change deal at COP15 in December 2009. This would translate into concrete policy where rich countries recognize their obligations and historic responsibility, to,support and finance adaptation actions in developing countries (beyond development assistance) and equitable mitigation based on historic responsibility and capacity, where global temperature would not increase beyond 2 degrees. To achieve these policy goals, Oxfam's campaign aimed to increase political will by encouraging progressive forces and opposing, or winning over, obstructive ones. Identification of these progressive and obstructive forces was done through a power analysis that shaped the focus of the campaign. To move these actors, Oxfam employed a generic campaign model, blending research, alliances, popular mobilisation, media work, and lobbying. This evaluation looks at Oxfam GB's global climate change campaign with in-depth case studies from Bangladesh, South Africa and the UK. The evaluation covers the period from March 2008 to December 2009, although the majority of available documentation and evidence is from 2009.