Red cedar tree study shows that Clean Air Act is reducing pollution, improving forests

A collaborative project involving a Kansas State University ecologist has shown that the Clean Air Act has helped forest systems recover from decades of sulfur pollution and acid rain. The research team spent four years studying centuries-old eastern red cedar trees, or Juniperus virginiana, in the Central Appalachian Mountains of West Virginia.

Fuente : http://www.eurekalert.org/pub_releases/2013-09/ksu...

Red cedar tree study shows that Clean Air Act is reducing pollution, improving forests

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