wrong, 2000 years. http://www.cnn.com/2006/TECH/science/06/22/global.warming.ap/
even so, who gives a shit? the earth goes through regular climate changes throughout time. just look at the ice age. that was a massive decrease in temperature, and then a massive increase back to normal. yes it's true that some human factors have helped this temperature increase, but it'll happen whether we like it or not. it's just the way the world works.