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This image provided by NASA shows Hurricane Earl, lower right, acquired at 1:00 a.m. EDT Wednesday Sept. 1, 2010. At 11 p.m. EDT Tuesday the center of Hurricane Earl was located about 910 miles south-southeast of Wilmington N.C. The Category 4 hurricane  was moving northwest at 15 mph with maximum sustained winds of 135 mph. (AP Photo/NASA) This image provided by NASA shows Hurricane Earl, lower right, acquired at 1:00 a.m. EDT Wednesday Sept. 1, 2010. At 11 p.m. EDT Tuesday the center of Hurricane Earl was located about 910 miles south-southeast of Wilmington N.C. The Category 4 hurricane was moving northwest at 15 mph with maximum sustained winds of 135 mph. (AP Photo/NASA)  

NASA climate scientist says extreme weather sign of climate change

(CNN) – What do the 2010 heat wave in Russia, last year’s Texas drought, and the 2003 heat wave in Europe have in common?

All are examples of extreme weather caused by climate change, according to a new study from NASA scientist James Hansen.

“This is not a climate model or a prediction but actual observations of weather events and temperatures that have happened,” he wrote in a Washington Post opinion piece meant to accompany the study.

Full Story: NASA scientist links climate change, extreme weather