According to the 4th Report by the UN Intergovernmental Panel onClimate Change (IPCC) in 2007, as compiled by 600 climatologists drawnfrom 40 countries around the world, using 14 super computer modelsover a 3 years period, there is greater certainty than ever, that the currentglobal warming is not a natural phenomenon. The report stated that thereis a 90% chance that global warming is caused by hu ...