L. Nils-Axel Morner, a Swedish climate expert based at Stockholm University, points out that observed rises in sea levels have not matched the IPCCs forecasts. Since this weeks report relies on many such IPCC assumptions, he concludes it must be wrong. Others acknowledge that there is a warming trend in the Arctic, but insist that the cause is natural variability and not the burning of fossil fuels. Such folk point to the extraordinarily volatile history of Arctic temperatures. These varied, often suddenly, long before sport-utility vehicles were invented. However, some evidence also shows that the past few millennia have been a period of unusual stability in the Arctic. It is just possible that the current period of warming could tip the delicate Arctic climate system out of balance, and so drag the rest of the planet with it.
M. Not everybody wants to hear a story like that. But what people truly believe is happening can be seen in their actions better than in their words. One of the reports most confident predictions is that the breakup of Arctic ice will open the region to long-distance shipping and, ironically, to drilling for oil and gas. It is surely no coincidence, then, that the Danish government, which controls Greenland, has just declared its intention to claim the mineral rights under the North Pole. It, at least, clearly believes that the Arctic ocean may soon be ice-free.
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