Changes

[[Image:Composite antarctic NASA.jpg|thumb|right|250px|A composite map of [[Antarctica]] showing areas of greatest warming in red, other colors indicate cooling. The Wilkins Ice Shelf lies off the peninsula in the top left corner, and shows extensive warming. Overall, Antarctica shows more cooling than warming, especially in the east, the area to the right.]]

[[Image:NASA-1024x933.jpg|thumb|right|250px|A composite map of [[Antarctica]] showing areas of greatest warming in red, with blue indicating cooling. The Wilkins Ice Shelf lies off the peninsula in the top left corner, and shows extensive warming. Overall, Antarctica shows little warming, and many areas to the in the East (right) are cooling<ref>Roberts, Greg. "Antarctic Ice is Growing, Not Melting Away." April 18, 2009. http://www.news.com.au/antarctic-ice-is-growing-not-melting-away/story-0-1225700043191</ref>.]]

'''Global warming''', scientifically speaking, is a worldwide increase in atmospheric temperature. What's really interesting is what causes it: i.e., is it more due to natural causes or man-made activity (see [[Global warming theory]]). This type of [[climate change]] is seen as a period of increases in global temperature, which is alternating with periods of [[global cooling]], and is a natural occurrence as part of an interval [[warming trend]] which has occurred multiple times throughout [[Earth|Earth's]] geological history.<ref>"After any given warming phase begins, thousands of years later the cyclical [[Milankovitch]] decrease in the sun's heat kicks in. The warming stops, reverses and an [[ice age]] ensues." [http://www.counterpunch.org/cockburn06092007.html Counterpunch], June 2007</ref>  [[Liberal]] claims of global warming led to the resignation in October 2010 by Professor Hal Lewis from The American Physical Society because of "the [[global warming]] scam, with the (literally) trillions of dollars driving it, that has corrupted so many scientists, and has carried APS before it like a rogue wave. '''It is the greatest and most successful pseudoscientific fraud I have seen in my long life as a physicist'''."<ref>http://thegwpf.org/ipcc-news/1670-hal-lewis-my-resignation-from-the-american-physical-society.html</ref>

'''Global warming''', scientifically speaking, is a worldwide increase in atmospheric temperature. What's really interesting is what causes it: i.e., is it more due to natural causes or man-made activity (see [[Global warming theory]]). This type of [[climate change]] is seen as a period of increases in global temperature, which is alternating with periods of [[global cooling]], and is a natural occurrence as part of an interval [[warming trend]] which has occurred multiple times throughout [[Earth|Earth's]] geological history.<ref>"After any given warming phase begins, thousands of years later the cyclical [[Milankovitch]] decrease in the sun's heat kicks in. The warming stops, reverses and an [[ice age]] ensues." [http://www.counterpunch.org/cockburn06092007.html Counterpunch], June 2007</ref>  [[Liberal]] claims of global warming led to the resignation in October 2010 by Professor Hal Lewis from The American Physical Society because of "the [[global warming]] scam, with the (literally) trillions of dollars driving it, that has corrupted so many scientists, and has carried APS before it like a rogue wave. '''It is the greatest and most successful pseudoscientific fraud I have seen in my long life as a physicist'''."<ref>http://thegwpf.org/ipcc-news/1670-hal-lewis-my-resignation-from-the-american-physical-society.html</ref>