More gloom from the IPCC

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The Guardian reports today that another study by the Intergovernmental Panel on Climate Change (IPCC) — due out soon — concludes that a critical meltdown of ice sheets and severe sea level rises could be inevitable because of global warming. Well known for its conservatism, even this body now believes that widespread ice sheet loss “may no longer be avoided”. According to the UN scientists this would cause “major changes in coastline and inundation of low-lying areas” and require “costly and challenging” efforts to move millions of people and infrastructure from vulnerable areas. The previous official line, issued in 2001, was that the chance of such an event was “not well known, but probably very low”.