News tagged with soil pollution

Tropical forests are fertilized by air pollution

Scientists braved ticks and a tiger to discover how human activities have perturbed the nitrogen cycle in tropical forests. Studies at two remote Smithsonian Institution Global Earth Observatory sites in Panama ...

Nov 03, 2011
5 / 5 (6) 3 | with audio podcast

Nitrogen in the soil cleans the air

Eutrophication harms the environment in many ways. Unexpectedly, nitrogen fertilizer may also be positive for the environment. And even acidic soils, promoting the destruction of forests, can have a positive ...

Aug 19, 2011
4 / 5 (1) 0 | with audio podcast

Researchers study threats to white sturgeon

University of Georgia researchers are working to understand why the nation's largest freshwater fish, the white sturgeon, is struggling in northern California's Sacramento-San Joaquin Bay Delta, an environmentally endangered ...

Aug 08, 2011
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Study probes sources of Mississippi River phosphorus

In their eagerness to cut nitrogen and phosphorus pollution in the Mississippi River and Gulf of Mexico, people have often sought simple explanations for the problem: too many large animal operations, for instance, or farmers ...

May 06, 2011
4 / 5 (2) 1

Farmers, ranchers served by stream bank biodiversity

On farms and rangelands in Yolo County, Calif., the stream and canal areas with the greatest variety of plants and soil organisms have the healthiest soil and least pollution potential, according to a novel ...

Oct 13, 2010
5 / 5 (1) 0

Arsenic in field runoff linked to poultry litter

Fields amended with poultry litter can accumulate significant levels of arsenic, according to studies by USDA-Agricultural Research Service (ARS) scientists and associates. These findings provide key information about the ...

Aug 16, 2010
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Tracking phosphorus runoff from livestock manure

Nutrient runoff from livestock manure is a common source of agricultural pollution. Looking for an uncommon solution, a team of scientists has developed an application of rare earth elements to control and track runoff phosphorus ...

Jun 14, 2010
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