Want to See Every Tree in America? [Science]

We may sing about purple mountains and amber grains, but one of America's most vital resources is its vast amount of carbon-catching, oxygen-spewing trees. Now, after six years of effort, NASA knows how many we've got. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/2wJyRLCktWI/want-to-see-every-tree-in-america

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