Climate Change's Latest Storm

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It's been a good week for the future of Life as We Know It. First the keepers of the climate-science consensus admitted that the Himalayan glaciers are not on the verge of disappearing, as these columns pointed out last month. Now we've learned that there wasn't much science behind the claim, also trumpeted in the U.N.'s Intergovernmental Panel on Climate Change 2007 report, that rising temperatures were leading to more-intense storms and more-expensive natural catastrophes.

This is good news for everyone, except perhaps the IPCC itself.

The IPCC's latest headache involves the section on global warming and natural disasters in its 2007 report. There, it cites "Muir-Wood et al., 2006" as claiming that "a small statistically significant trend was found for an increase in annual catastrophe loss since 1970 of 2% per year." That detailed and caveat-laden section was then translated in the IPCC's synthesis report as saying that more "heavy precipitation" is "very likely" and that an "increase in tropical cyclone intensity" is "likely" as temperatures rise. The IPCC's 2007 report was not the first star-turn for "Muir-Wood et al." The hugely influential 2006 Stern Review, commissioned by the British government, cited Muir-Wood to help support its dramatic predictions of the costs of unchecked global warming.

The idea that hotter temperatures will lead to apocalyptic storms has had a major policy impact. In October 2009, a court in New Orleans ruled that victims of Hurricane Katrina could sue oil and gas companies for their supposed contributions to the ferocity of the storm. In September 2009, U.S. President Obama told a climate conference that "More powerful storms and floods threaten every continent."

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