الخميس، 15 ديسمبر 2016

In California’s forests, removing small trees leaves water for bigger ones and for dwindling reservoirs



IN THE early 1900s, an average forested acre in California supported fewer than 50 or so trees. After a century of efforts to fight wildfires, the average has risen to more than 300 (albeit mostly smaller) trees. Some might reckon such growth wonderful, but it is a problem far more serious than, say, the fact that horses can no longer trot through areas wher..

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