LiveScience: Large swaths of the Arctic tundra will be warm enough to support lush vegetation and trees by 2050, suggests a new study.
Higher temperatures will lessen snow cover, according to the study, which is detailed in the March 31 issue of the journal Nature Climate Change. That, in turn, will decrease the sunlight reflected back into the atmosphere and increase warming. About half the areas will see vegetation change, and areas currently populated by shrubs may find woody trees taking their place. …

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