Redwoods and sequoias thrive despite climate change

Visitors walk along a path of Coastal Redwood trees at Muir Woods National Monument in Mill Valley, Calif., Aug. 20, 2013.

A four-year study by the Save the Redwoods League called "the Redwoods and Climate Change Initiative" found that due to changing environmental conditions, California's coastal redwoods and giant sequoias are experiencing an unprecedented growth surge and have produced more wood over the past century than any other time in their lives.

A young coastal redwood tree grows at Muir Woods National Monument in Mill Valley, Calif., Aug. 20, 2013.

Park visitors walk along a path of coastal redwood trees at Muir Woods National Monument in Mill Valley, Calif., Aug. 20, 2013.

Coastal redwood tree needles are seen at Muir Woods National Monument, Aug. 20, 2013.

Park visitors walk along a path of coastal redwood trees at Muir Woods National Monument, Aug. 20, 2013.

Coastal redwood tree needles are seen at Muir Woods National Monument, Aug. 20, 2013.

A park visitor looks at age rings on a cut section of a coastal redwood tree at Muir Woods National Monument, Aug. 20, 2013.

A visitor walks along a path of coastal redwood trees at Muir Woods National Monument, Aug. 20, 2013.

Coastal redwood trees stand at Muir Woods National Monument, Aug. 20, 2013.

Visitors walk along a path of coastal redwood trees at Muir Woods National Monument, Aug. 20, 2013.

Age rings are shown on a cut section of a coastal redwood tree at Muir Woods National Monument, Aug. 20, 2013.

Coastal redwood trees stand at Muir Woods National Monument, Aug. 20, 2013.

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