summary from Wikipedia of Climate Change 2007 -- the fourth in a series of reports assessing scientific, technical and socio-economic information concerning climate change, its potential effects and options for adaptation and mitigation

the Exploratorium provides a succinct overview regarding what is known about global climate change scientifically

UK's Royal Society provides science-based information on climate change, impacts, mitigation and policy implications

Australian Department of Climate Change provides a better understanding of the causes, nature, timing and consequences of climate change

a consortium of universities that educate scientists and pursues research to enrich our understanding of the Earth system

a multi-disciplinary research group with expertise in the two key areas of climate science: ocean processes and terrestrial processes

provides integrated U.S. federal research on global change and climate change

a listing that is updated monthly to recent Internet scientific materials on climate change and related topics