US National Academy of Sciences find Greenhouse Effect does not exist!

         An overlooked science report from the United States National Academy of Sciences(NAS) has revealed that the Greenhouse Effect does not exist!    The NAS document "Carbon dioxide and Climate: A Scientific Assessment" commissioned by the US government and first published in 1979 never even mentions the greenhouse gas effect in its 13, 000 words.  Scientists at PSI assert that this is the most compelling physical evidence ever found proving the GHE as nothing more than a modern(post- 1979) political construct.   American scientists knew as far back as 1979 that there was no greenhouse gas effect for CO2 to impact!   Remember that the cream of US climate science in the 1970`s had no political axe to grind   This undoubtedly challenges the modern man made global warming scam. We can now say that no serious mainstream climate scientist then gave the GHE the time of day. (see PSI web site  http://principia-scientific.org).  See also http://johnosullivan.wordpress.com/2012/12/20/breaking-u-s-national-academies-find-greenhouse-effect-doesnt-exist/