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Imagine the North American tundra giving way to trees, shrubs and plants typical of more southerly climates. Imagine similar changes in large parts of Eastern Europe, northern Asia and Scandinavia, as needle-leaf and broadleaf forests push northward into areas once unable to support them. Imagine part of Greenland's ice cover receding and leaving new tundra in its wake. Those changes are part of a reorganization of Arctic climates anticipated to occur by the end of the 21st century. [Source: EurekaAlert!]
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