Here are some useful tools for anyone interested in climate evolution:
http://climate.nasa.gov/ClimateTimeMachine/climateTimeMachine.cfm
http://climate.nasa.gov/SeaLevelViewer/seaLevelViewer.cfm
http://climate.nasa.gov/SeaLevelViewer/seaLevelViewer.cfm
http://climate.nasa.gov/warmingworld/globalTemp.cfm
Here are some more climate devoted forums:
http://www.theenvironmentsite.org/forum/climate-change-forum/
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