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Searching In features, blog entries, column entries & news items, Under the topic Earth Science
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A new primer on climate change is slim and trim.Published: Friday, August 1st, 2008Found in: Climate Change, Earth, Earth Science, Environment and Science & Society -
Federal climate policymakers should have a grounding in basic chemistry.Published: Sunday, July 13th, 2008Found in: Chemistry, Climate Change, Earth Science, Environment, Molecules and Science & Society
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The start of an avalanche is more about the snow than the slope.Published: August 2nd, 2008; Vol.174 #3Found in: Earth and Earth Science -
The sea level rise expected in the coming century will swamp the Everglades unless current management is adjusted or climate change is curbed.Published: Tuesday, May 27th, 2008Found in: Earth Science and Ecology
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A kilometers-long ice core from Antarctica has been recording climate information for the past 800,000 years and has revealed a three millennia–long period when carbon dioxide levels in the air were lower than any previously measured.Published: June 7th, 2008; Vol.173 #18Found in: Climate Change, Earth Science and Environment -
Home / Blogs / Science & the Public / Science & the Public : Babbitt to Southern Louisiana: Look into Gondolas“New Orleans, at the end of the century, will be an island” — literally, predicts Bruce Babbitt. Whether or not you believe his assessment, he makes a good case for considering the implications of climate change when planning federal projects.Published: Monday, May 5th, 2008Found in: Climate Change, Earth Science, Environment and Science & Society
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Fossil-fuel pollution has been offsetting global warming to the tune of about 30 percent per year. Cleaning up that pollution, a must, threatens to accelerate warming unless humanity changes its fuel-use strategy.Published: Monday, May 5th, 2008Found in: Climate Change, Earth Science, Environment, Matter & Energy and Science & Society
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An unusual layer of rock found along Britain's northwestern coast formed from the debris thrown out of a crater when a meteorite struck nearby more than 1 billion years ago. (p. 238)Published: April 12th, 2008; Vol.173 #15Found in: Earth Science
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The Tibetan Plateau formed when the Indian and Eurasian plates collided, but scientists may have had the order of events wrong. (p. 222)Published: April 5th, 2008; Vol.173 #14Found in: Earth Science
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Nitrate, a common pollutant, may also perturb reproductive hormones—at least in frogs.Published: Thursday, March 27th, 2008Found in: Body & Brain, Earth Science, Environment and Humans -
The North Atlantic's Gulf Stream affects the overlying atmosphere more strongly than previously suspected. (p. 164)Published: March 15th, 2008; Vol.173 #11Found in: Earth Science -
Sea level has dropped about 170 meters in the past 80 million years, thanks in part to the thinning of ocean crust and the formation of land-based ice sheets. (p. 150)Published: March 8th, 2008; Vol.173 #10Found in: Earth Science -
Home / News / March 8th, 2008; Vol.173 #10 / Ancient Chasm: Parts of Grand Canyon may be 17 million years oldThe chemical composition of mineral formations in caves along the Grand Canyon may provide fresh insight into the chasm's history, including its age and the rate at which it was carved. (p. 147)Published: March 8th, 2008; Vol.173 #10Found in: Earth Science -
Nineteenth-century settlers left a dusty mark on the West. Rocky Mountain lake deposits reveal that America's westward expansion kicked huge amounts of dirt into the airprobably from livestock grazing.A team led by Jason Neff, a biogeochemist at the University of Colorado in Boulder, examined soil cores from the beds of tiny mountain lakes in Colorado's San Juan Mountains. The cores captured soil and dust deposited in the lake over 5,000 years. The chemical makeup of the cores was nothing like the surrounding bedrock, suggesting that the dirt came from hundreds of kilometers away, Neff s... (p. 157)Published: March 8th, 2008; Vol.173 #10Found in: Earth Science
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Home / News / February 9th, 2008; Vol.173 #6 / Finding Fault: Trace of old subduction zone found in ItalyA thick layer of rocks now lying high in the mountains of Italy is the remains of a quake-generating subduction zone active under the sea millions of years ago, a discovery that provides clues about ancient seismic activity along this interface between tectonic plates and insights into what may be happening along many such subduction zones today. (p. 83)Published: February 9th, 2008; Vol.173 #6Found in: Earth Science
