March 6, 2009
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Monitoring & Testing Newsletter March 6, 2009 |
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| This Week´s Featured News Stories |
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Geologists map rocks to soak CO2 from air
To slow global warming, scientists are exploring ways to pull carbon dioxide from the air and safely lock it away. Trees already do this naturally through photosynthesis; now, in a new report, geologists have mapped large rock formations in the United States that can also absorb CO2, which they say might be artificially harnessed to do the task at a vastly increased pace. The report, by scientists at Columbia University’s Earth Institute and the U.S. Geological Survey, shows 6,000 square miles of ultramafic rocks at or near the surface. Originating deep in the earth, these rocks contain minerals ... |
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Satellites help keep Chesapeake Bay clean
Space-age technologies to help Maryland implement and monitor an expanded winter cover crop program that is vital to the Chesapeake Bay`s health are being developed by Agricultural Research Service (ARS) scientists in Beltsville, Md. Soil scientist Gregory McCarty and colleagues Dean Hively, Ali Sadeghi and Megan Lang with the ARS Hydrology and Remote Sensing Laboratory in Beltsville are developing satellite-monitoring technologies to reveal cover crop growth and nutrient uptake. The satellite images are used in combination with field information submitted by farmers enrolled in the state`s cover ... |
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