The retired scientist formerly in charge of key NASA climate programs has come out as a sceptic. Dr John Theon, who supervised James Hansen - the activist-scientist who helped give the manmade global warming hypothesis centre prominent media attention - repents at length in a published letter. ... "As Chief of several of NASA Headquarters’ programs (1982-94), an SES position, I was responsible for all weather and climate research in the entire agency, including the resear...

Average global temperatures have been going up since the 1910s and despite falling occasionally keep going up by the extreme amount of nearly a degree Celsius. (Note that this means that in some places average temperatures are now two degrees higher than 1910 and in some places they are one degree lower than in 1910.) http://en.wikipedia.org/wiki/File:Instrumental_Temperature_Record.png Since 2002 average temperatures have been falling by 0.2 degrees. In 2006 Al Gore realesed the movi...