Scientists study global warming's effect on California redwoods
Two of his colleagues dangled on ropes 100 feet above from the gnarled branches of a giant sequoia tree. Steve Sillett could hardly contain his excitement.
Two of his colleagues dangled on ropes 100 feet above from the gnarled branches of a giant sequoia tree. Steve Sillett could hardly contain his excitement.
Environment
Jul 5, 2010
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