22 Jan '12, 3pm

NASA's Maps of US Trees Will Be a "Before" Picture for Deforestation

NASA's Maps of US Trees Will Be a "Before" Picture for Deforestation

NASA Earth Observatory /via (Click for larger image) One of the harder things about proving climate change and other large-scale trends is that they're slow processes. Year-to-year data can't prove anything conclusive, and data from 10, 20 or 100 years ago is rarely as complete as we would like it to be. That's why the NASA Earth Observatory set out six years ago to create a map of the country's trees. Now scientists have a conclusive picture of today's forests , which are crucial to storing carbon and keeping its presence in the atmosphere pin check. The map, which actually measures "aboveground woody biomass" in tons per hectare, was created by Josef Kellndorfer and Wayne Walker of the Woods Hole Research Center (WHRC), along with colleagues at the U.S. Forest Service and U.S. Geological Survey . Forests store huge amounts of carbon - NASA says up to 45% - of the global ...

Full article: http://www.treehugger.com/natural-sciences/nasa-maps-amer...

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