Earth/Environment
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Megadrought might strike U.S. Southwest, study warns
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Iceland lowers Bardarbunga volcano alert
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Megadrought possibly brewing in U.S. Southwest: Study
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Mountain air has high levels of ozone pollution, too
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U.S. Southwest: Beware the looming 35-year ‘megadrought’
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Think mountain air is always clean? Study in Colorado says otherwise
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20 types of corals listed as threatened species by NOAA, will raise awareness level
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Global warming on pause? Atlantic may hold the answers
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Scientists raised fishes to walk on land: This is evolution from land to sea
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How Death Valley 'sailing stones' move? Here's the answer
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Unwanted species invades the Great Lakes
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20 new types of coral need federal protection
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