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With Speed and Violence Fred Pearce - Global Commons Institute

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the norm. In parts of the city, there was a three-week wait for funerals. More<br />

than 400 bodies were never claimed by relatives.<br />

It wasn't just the mortuaries that were rewriting their record books. This<br />

was the first single weather event that climate scientists felt prepared to say<br />

was directly attributable to man-made climate change. In the past, the<br />

assumption had always been that any individual weather event could be the<br />

product of chance. But the 2003 heat wave was different, says the Oxford<br />

University climate scientist <strong>and</strong> statistician Myles Allen. "The immediate<br />

cause, I agree, was a series of anticyclones over Europe. They always raise<br />

temperatures in summer, <strong>and</strong> we can't say those were made any more likely<br />

by climate change. But we can say that climate change made the background<br />

temperatures within which those anticyclones<br />

operated that much higher."<br />

There is no doubt that average temperatures have been rising strongly for<br />

years. In much of Europe, the summer average at the start of the new<br />

century was 0.9 to 1.8°F warmer than it was in the first half of the twentieth<br />

century. In the summer of 2003, temperatures averaged 4.1 degrees warmer.<br />

Judging from past averages, the heat wave was probably a<br />

once-in-a-thous<strong>and</strong>-years event. But, says Allen, "small changes in average<br />

temperatures make extreme events much more likely."<br />

One of the nicest confirmations of how exceptional the summer of 2003<br />

was came from a study published at the end of 2004. The French<br />

mathematician Pascal Yiou, of the Laboratoire des Sciences du Climat et de<br />

l'En- vironnement, had collected more than 600 years' worth of parish<br />

records showing when the Pinot Noir grape harvest began in the Burgundy<br />

vineyards of eastern France. There is a clear relationship between summer

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