Changing tundra may enhance global warming

[Dr Martin Williams [account from Drupal site]]

Quote:

Regions of Arctic tundra around the world are heating up very rapidly, releasing more greenhouse gases than predicted and boosting the process of global warming, a leading expert said on Wednesday.

Professor Greg Henry of the University of British Columbia also said higher temperatures meant larger plants were starting to spread across the tundra, which is usually covered by small shrubs, grasses and lichen. The thicker plant cover means the region is getting darker and absorbing more heat.

Arctic tundra hotter, boosts global warming: expert

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