Good Article 74, I agree that the global climate change has to do more with nature that man. The movement of the magnetic poles is happening right now and may last hundreds of years according to geologic and fossil records. On the magnetic pole changes you can read this article on NASA website, http://www.nasa.gov/topics/earth/features/2012-poleReversal.html
Also volcano eruptions change the climate too. We been having many this year.