News tagged with environmental threats
Forest service report shows forest growth in north outpacing other parts of country
U.S. Forest Service scientists today released an assessment that shows forest land has expanded in northern states during the past century despite a 130-percent population jump and relentless environmental threats. At the ...
Mar 12, 2012 |
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Human population the primary factor in exotic plant invasions in the United States
Extensive ongoing research on biotic invasions around the world constantly increases data availability and improves data quality. New research in the United States shows how using improved data from previous ...
Feb 23, 2012 |
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Planet 'far away' on climate goals: study
The world remains far away from meeting UN-backed goals on holding back climate change, setting the stage for major damage without more ambitious efforts to cut emissions, a study said Tuesday.
Oct 04, 2011 |
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BP oil not degrading on Gulf floor, study says
(AP) -- Tar balls washed onto Gulf of Mexico beaches by Tropical Storm Lee earlier this month show that oil left over from last year's BP spill isn't breaking down as quickly as some scientists thought it would, university ...
Sep 20, 2011 |
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A tool to measure stress hormone in birds -- feathers
When faced with environmental threats like bad weather, predators or oil spills, wild birds secrete a hormone called corticosterone. Traditionally, researchers have analyzed blood samples to detect corticosterone levels in ...
Aug 16, 2011 |
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Toxic chromium found in Chicago's drinking water
Chicago's first round of testing for a toxic metal called hexavalent chromium found that levels in local drinking water are more than 11 times higher than a health standard California adopted last month.
Aug 08, 2011 |
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Researchers study cotton gin dust emissions
The last of seven cotton gins is being tested this year as the fieldwork for a major 4-year cotton gin dust sampling project draws to a close. U.S. Department of Agriculture (USDA) scientists organized the project to intensively ...
Jul 05, 2011 |
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Paper industry tests genetically altered trees
The commercial paper industry's plans to plant forests of genetically altered eucalyptus trees in seven Southern states has generated more cries from critics worried that such a large introduction of a bioengineered ...
Jun 07, 2010 |
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Study reveals how Arctic food webs affect mercury in polar bears
With growing concerns about the effects of global warming on polar bears, it's increasingly important to understand how other environmental threats, such as mercury pollution, are affecting these magnificent Arctic animals.
Dec 08, 2009 |
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Amphibians as environmental omen disputed
Amphibians, for years considered a leading indicator of environmental degradation, are not uniquely susceptible to pollution, according to a meta-analysis to be published in Ecology Letters.
Nov 11, 2009 |
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Forest Service Web-based tool helps manage environmental risk
The U.S. Forest Service Eastern Forest Environmental Threat Assessment Center (EFETAC) recently launched the Comparative Risk Assessment Framework and Tools (CRAFT), a user-friendly, Web-based support system that helps natural ...
Sep 25, 2009 |
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Northwestern United States could face more tamarisk invasion by century's end
If the future warming trends that scientists have projected are realized, one of the country's most aggressive exotic plants will have the potential to invade more U.S. land area, according to a new study published in the ...
Sep 15, 2009 |
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Racing the clock: Rapid climate change forces scientists to evaluate extreme conservation strategies
Scientists are, for the first time, objectively evaluating ways to help species adapt to rapid climate change and other environmental threats via strategies that were considered too radical for serious consideration as recently ...
May 25, 2009 |
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