June 9, 1991 12:00 AM

Sierra in peril: From mining to malls, onslaught takes toll

Today, California's Sierra Nevada - one of the world's great mountain ranges - is suffering a slow death. Almost everywhere there are problems: polluted air, dying forests, poisoned rivers, vanishing wildlife, eroding soil and rapid-fire development. Even Muir's holy ground, Yosemite National Park, is hurting: Much of its forest has been damaged by ozone.

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