Yosemite National Park and Sequoia National Park are decades off track from achieving the goals of the Clean Air Act to make them free of man-made pollution.
Yosemite National Park and Sequoia National Park are decades off track from achieving the goals of the Clean Air Act to make them free of man-made pollution. JAY MATHER Sacramento Bee
Yosemite National Park and Sequoia National Park are decades off track from achieving the goals of the Clean Air Act to make them free of man-made pollution. JAY MATHER Sacramento Bee

It’s time to clear the air in California parks

May 27, 2016 11:00 AM

UPDATED May 28, 2016 05:05 PM

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