Source 1
The PEW Charatible trust
http://www.pewtrust.org/ . 1996-2010
Found on October 11 2010
Source 2
Global Warming.org
http://www.globalwarming.org/ 2004-2010
Found on October 12 2010
Source 3
A Center for a New American Security
http://www.cnas.org/about 2007-2010
Found on October 12 2010
Source 4
See-the-Sea
http://www.see-the-sea.org 1990-2010
Found on October 12 2010
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