Sequoia National Park: Worst Air Pollution  (New)

Date: May 29, 2012
Source: San Francisco Chronicle
Limited Access Reprint

Sequoia National Park, home to the biggest living things on Earth -- the giant Sequoia redwoods -- also has the worst air pollution of any national park in the country. "There is no simple answer to ozone pollution," said Thomas Cahill, a researcher at UC Davis who studies air problems in the park and across California

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