Thursday, April 22, 2010

When did climate change start?

The earth has been warming up since the industrial age. the machines of modern life and the fuels that powered them began to change the climate. but scientist say climate change began way earlier as in a thousands years ago.

climate change is a change in the statistical distrubution of weather over periods of time that range from decades to millions of years. this can be changed in the average weather or a change in the distribution of weather events around an average.

http://en.wikipedia.org/wiki/climate _change

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