National forests can provide public health benefits, U.S. study finds

Wednesday, September 7, 2011 - 18:30 in Mathematics & Economics

Each year, more than 170 million people visit U.S. national forests for recreation. And the physical activity associated with these visits burns 290 billion food calories. That equals enough french fries laid end to end to reach the Moon and back -- twice -- according to a recent study.

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