Heat and drought pose threat to US power supplies
25 May 2015

Hydroelectric plants such as Shasta Dam, in California, would suffer from reduced water flow.
By TIM RADFORD.- Climate change could mean that things get really tough for people in the US west in the second half of this century, according to new research.
Higher temperatures and increased intensity of droughts could compromise the electricity grid, while the number of people exposed to extremes of heat is likely to multiply at least fourfold, and perhaps more.
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