July 22, 2010
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Soil & Groundwater Newsletter July 22, 2010 |
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| This Week´s Featured News Stories |
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Absorbing organic pollutants in soils
A new study closely examines the role degrading plant materials play in absorbing organic pollutants in the soil. These “biopolymers” are the waxy, water resistant barriers between the plant cells and the environment. This information is important to evaluate the role of these biopolymers as a natural sorbent for organic pollutants in the environment. The study, reported in the July/August 2010 edition of the Soil Science Society of America Journal, found that the 30-35% of the polymers decomposed after twenty months of incubation. There are two types of polymer; cutin, providing ... |
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Footloose glaciers crack up
Glaciers that lose their footing on the seafloor and begin floating behave very erratically, according to a study published in the journal Geophysical Research Letters. Floating glaciers produce larger icebergs than their grounded cousins and do so at unpredictable intervals. This study presents the first detailed observation of the transition from grounded to floating glaciers, which is currently ongoing at Columbia Glacier, one of Alaska"s many tidewater glaciers. Tidewater glaciers flow directly into the ocean, ending at a cliff in the sea, where icebergs are formed. Prior to this study, ... |
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