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Public Radio's Environmental News Magazine (follow us on Google News)

Crowding out the Trees

Air Date: Week of

Summer has arrived and frugal-minded, ecology-conscious vacationers are foregoing traditional amusement parks for the real thing: national parks. But their increasing numbers are wearing on the parks' resources and increasing pollution and traffic in the fragile park environments. Betsy Bayha reports on the effects on one of America's most famous and most vulnerable national parks: Yosemite.

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