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Last updated on April 17, 2014 at 21:23 EDT

Latest Ed Berg Stories

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2008-08-20 10:05:00

Scientists have found that the ground is drying out in a 13,700-year-old peat bog, just another sign, they say, of the Earth's warming climate. Ecologist Ed Berg says the peat bog is turning into forest. "There has been a big change," Berg said. Core samples taken from the bog show moss nearly 22 feet under the ground, with no sign of trees or shrubs growing here for centuries, Berg said. The bog could be covered by black spruce trees during the next 50 years, he said. Alaska is one state,...