Heatwaves Double Over 100 Years

Number of 'extremely hot days' have tripled, Euro study shows
By Dustin Lushing,  Newser Staff
Posted Aug 4, 2007 4:42 PM CDT
As the temperature reaches 108 degrees Fahrenheit(42 Celcius...   (Getty Images)
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(Newser) – The duration of heatwaves in Western Europe has doubled and the frequency of extremely hot days has nearly tripled since 1880, according to a study released yesterday. Periods of sweltering weather last an average of 3 days now compared to 1.5  in 1880, a shift that forebodes a higher rate of extreme weather events in the future, the BBC reports.

Scientists analyzed data from 54 recording stations from as far north as Finland and as far south as Spain. They said earlier scientists underestimated the growth in hot weather by as much as 30% because older thermometers did not protect against direct sunlight and indirect radiation.