In the North American Arctic the Mackenzie River courses into the Beaufort Sea, the outlet of a watershed that drains a vast swath of the western Canadian landscape. At the river's mouth, the Mackenzie Delta is a broad floodplain ...
Earth Sciences
Jan 15, 2013
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(Phys.org)—Small clouds equal big impact. Researchers at Pacific Northwest National Laboratory designed an update to a frequently used computer model that represents the impact of small, puffy, fair-weather clouds on the ...
Earth Sciences
Jan 15, 2013
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An extension of the current Farm Bill has delayed the debate over funding for SNAP, the Supplemental Nutrition Assistance Program, formerly known as the Food Stamp Program. Nutrition programs, of which SNAP is the primary ...
Economics & Business
Jan 15, 2013
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As ocean waves pass from deeper water into the shallow coastal regions, they begin to break, churning up the surf zone waters. At the edges of the crests of the breaking waves, horizontally-rotating eddies (vertical vortices) ...
Earth Sciences
Jan 15, 2013
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A quantitative analysis of dust sources in Delhi by scientists from India, the UK and the USA will provide important new insight into how individual sources of air-borne matter contribute to the overall concentrations measured ...
Environment
Jan 15, 2013
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(Phys.org)—Increasingly hot summer weather could cause a fall in crop yields over the next two decades unless farming techniques are improved more quickly, scientists at the University have found.
Environment
Jan 15, 2013
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The past few years have seen powerful droughts across the U.S., with water shortages threatening crop production, shipping traffic, energy production, and groundwater stores. Water scarcity issues are particularly relevant ...
Environment
Jan 15, 2013
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A new study by economists at the University of Colorado Denver and Montana State University reveals that so-called "per se" drugged driving laws have no discernible impact on traffic fatalities.
Social Sciences
Jan 15, 2013
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(Phys.org)—A new way of studying and visualizing Earth science data from a NASA and U.S. Geological Survey satellite program is resulting in, for the first time, the ability to tease out the small events that can cause ...
Earth Sciences
Jan 15, 2013
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(Phys.org)—A team of Swiss, Czech, Canadian and German researchers has found that prolonged cold spells in Eastern Europe over the last thousand years has led to wars, plagues and civil unrest. In their paper published ...
