In 2001 the 26 IEA Member countries took or planned over 200 energy-related policies and measures to tackle climate change caused by greenhouse gas emissions. This volume reviews the actions taken and describes them in detail. It shows how developed countries implement the commitments made under international agreements or at national level to reduce their emissions. The policies have been classified under six major headings: fiscal polices, tradable permits, regulatory instruments, voluntary agreements, R&D policies and policy processes. The introductory analysis provides an overview and assessment of recent policy trends.