Mad dogs and Englishmen

TAKE cover: heat waves are on the way. Despite the unusually cold winter the government has drawn up a national emergency plan to deal with the rising risk of extreme hot weather linked to climate change.

Under the plan, people in areas hit by heat waves will be advised to stay indoors during the middle of the day — in effect, taking a siesta — and change out of formal clothing such as suits and avoid hot food.
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The most extreme conditions are, however, likely to occur in cities like London, Manchester and Birmingham where the so-called urban heat island effect can already push temperatures up to 9C higher than the surrounding countryside.

World Climate Report » European Heat Wave 2003: A Global Perspective

Chase et al. examined the trends in the data over the 25 years and found “Regression analyses do not provide strong support for the idea that regional heat or cold waves are significantly increasing or decreasing with time during the period considered here (1979–2003).” Sorry, but there is no evidence that things are getting worse when a global-scale analysis is conducted.