Where the trees are

A recent paper in Nature reports that the Earth has about 3,040,000,000,000 trees – about 420 trees per man, woman, and child on the planet. Unfortunately, that number is dropping by about 0.5% every year, which is not good news. See the sci-news.com summary of the story for details.

Here (courtesy of NASA, Robert Simmon, and the Woods Hole Research Center) is where the trees are in the USA:


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