| Is Climate Change Sneaking Up on Us? Issue1 #472968 When I was a member of the IPCC some 20 years ago, scientists were forecasting an ice-free Arctic by around the 2070's. Today that forecast has moved up by 50 years! That summarizes in a microcosm the concerns of many scientists that climate models have understated the pace and magnitude of climate change resulting from human activities. The other aspect of this question involves second and third order impacts of climate change that the models have no way to forecast. |
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