From Harry Clift:

Re: Did Native Americans contribute to global warming? (April 15): Cap and Trade will end Global Warming for ever. Thanks to US Congress!!! All scientist agree and All evidence proves without question that global warming was caused by the Industrial Generation. For global warming, Now NASA experts want to blame Native Americans that lived 100 Before Christ because the native diet included nuts?

Overly educated idiots. How did humans cause the recent earthquakes and volcanoes?