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Government Agencies
  Web Link
  Link   Global Warming - House of Representatives
Here is a web page for the US House of Representatives on Global warming issues.
  Link   Energy Efficiency and Renewable Energy
More DOE Stuff, highly filtered for renewable energy
  Link   National Renewable Energy Lab
This is where they're trying to figure it all out. Some of the most important testing and development happens here. A lot of interesting and futuristic information here.
  Link   US Department of Energy
There is an amzing amount of content here. Put on your minors hat and start drilling.
  Link   State of Florida Energy Act