Tuesday, March 8, 2011

Until a few million years ago, the global climate was warmer than at present, especially at higher latitudes - Wikipedia, the free encyclopedia

Boreal Kingdom - Wikipedia, the free encyclopedia: "Until a few million years ago, the global climate was warmer than at present, especially at higher latitudes, and many temperate-climate species were distributed across North America and Eurasia via Alaska and Siberia. The sharply cooler climate of the past few million years [the ice ages] eliminated a temperate-zone connection between North America and Eurasia, but common Laurasian origins and a long history of temperate-climate land bridges account for the botanical similarities between the temperate floras on the two continents.
So a global warming would be a return to the usual global temperature?

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