2010 Russia heat wave due to natural variability, say U.S. scientists


The 2010 Russian heat wave that killed thousands and cut into that country’s grain harvest was primarily due to natural variability, not human-spurred climate change, U.S.

WASHINGTON (Reuters) – The 2010 Russian heat wave that killed thousands and cut into that country’s grain harvest was primarily due to natural variability, not human-spurred climate change, U.S. scientists said on Wednesday.

There was plenty of circumstantial evidence pointing to human-caused greenhouse gas emissions and the resulting rise in carbon dioxide in the atmosphere, but close investigation showed this was not a major factor, the scientists said in research published online in Geophysical Research Letters.

“It was an off-the-charts intensity event,” Randall Dole of the U.S. National Oceanic and Atmospheric Administration said at a telephone news briefing. “It certainly was the most extreme event we had seen, dating back to at least 1880,” when modern weather record-keeping began. …

Computer models show the risk of such heat waves in western Russia could rise from less than 1 percent in 2010 to 10 percent or more by 2100 as the concentration of greenhouse gases in the atmosphere increases.

More (Click here) Reuters, Scientific American, Deborah Zabarenko

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