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Researchers from the Massachusetts Institute of Technology attacked the United Nations' most recent global climate report, saying that it substantially underestimated the severity of the melting of the Arctic sea ice. MIT's research team said the thinning could be happening as much as four times faster than predicted by the Intergovernmental Panel on Climate Change, which released its last report in 2007. It projected that all ice would disappear in the Arctic summer by 2100, but MIT forecasts it to be even sooner.