Energy Efficiency: Policies and Measures is a worldwide compilation of recent government actions to improve energy efficiency in the IEA member countries. This compilation can be searched by country, sector, and type of policy.- IEA 2005
CO2 emissions from CDIAC(Carbon Dioxide Information Analysis Center) An excellent site for CO2 emissions data, presented down to country level with graphs ( up to 1999). There is also data on global temperatures including historical evidence from the Vostok ice core.