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Latest Eutrophication Stories

2010-11-01 22:20:09

Excess nitrogen from agricultural and urban lands is contaminating groundwater, streams, lakes and estuaries, where it causes harmful algal blooms and contributes to fish kills. Cost-effective approaches to removing this nitrogen from croplands and urban stormwater runoff before it reaches sensitive water bodies have been elusive. But simple and inexpensive technologies are on the horizon. A recent scientific workshop on denitrification brought together ecologists, engineers and policy...

2010-10-23 01:33:28

Eutrophication of the Baltic Sea has clear negative effects, such as dead bottoms and massive blooms of cyanobacteria. But high plankton production can also have positive effects on acidification. Researchers at the University of Gothenburg, Sweden, have shown that it is possible to work out the aggregate effects of various environmental measures. "The environmental state of the Baltic Sea is affected by many different processes at the same time and on several different time scales....

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2010-10-08 18:00:00

Resulting ecological damage is serious, but could be reduced by wider use of more sustainable, time-honored practices Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is an element that is essential to life, it is an environmental scourge at high levels. According to the study, excess nitrogen that is contributed by human activities pollutes...

2010-10-08 02:24:37

Resulting ecological damage is serious, but could be reduced by wider use of more sustainable, time-honored practices Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is an element that is essential to life, it is an environmental scourge at high levels. According to the study, excess nitrogen that is contributed by human activities pollutes...

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2010-09-09 13:19:00

Uses more water, leaches less nitrogen In the search for the perfect crop for biofuel production, Miscanthus  has become the darling to many. But in an effort to not be charmed by its enormous potential for biomass production, researchers at the University of Illinois are taking a careful look at the pros and cons of its behavior in the field. A recent study analyzed water quantity and quality in plots of Miscanthus, switchgrass, corn, and soybeans and found that Miscanthus used...

2010-07-01 15:58:47

Scientists find excess nitrogen favors plants that respond poorly to rising CO2 As atmospheric carbon dioxide levels rise, so does the pressure on the plant kingdom. The hope among policymakers, scientists and concerned citizens is that plants will absorb some of the extra CO2 and mitigate the impacts of climate change. For a few decades now, researchers have hypothesized about one major roadblock: nitrogen. Plants build their tissue primarily with the CO2 they take up from the atmosphere....

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2010-04-21 13:29:06

A new study exploring the growing worldwide problem of nitrogen pollution from soils to the sea shows that global ratios of nitrogen and carbon in the environment are inexorably linked, a finding that may lead to new strategies to help mitigate regional problems ranging from contaminated waterways to human health. The University of Colorado at Boulder study found the ratio between nitrates -- a naturally occurring form of nitrogen found in soils, streams, lakes and oceans -- and organic...

2010-01-11 13:03:00

WASHINGTON, Jan. 11 /PRNewswire-FirstCall/ -- Saving the Bay requires a new approach to address a huge gap between the pollution caused by livestock waste and the dollars available to treat it. So says a company that takes a high-tech approach to handling the huge volumes of nutrient waste from the region's livestock - presently the leading source of pollution in the Chesapeake Bay partly because it is so spread out. "Nitrogen pollution from livestock waste is the Bay's biggest...

2009-12-03 21:37:04

U of Minnesota study involved a 10-year outdoor experiment Rising levels of carbon dioxide may overheat the planet and cause other environmental problems, but fears that rising CO2 levels could directly reduce plant biodiversity can be allayed, according to a new study by a University of Minnesota scientist Peter Reich. In fact, rising CO2 may actually help counteract losses of diversity from another environmental villain: the global rain of nitrogen from fertilizers and exhaust fumes. The...

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2009-11-06 06:22:17

The impact of airborne nitrogen released from the burning of fossil fuels and wide-spread use of fertilizers in agriculture is much greater that previously recognized and even extends to remote alpine lakes, according to a study published Nov. 6 in the journal Science. Examining nitrogen deposition in alpine and subalpine lakes in Colorado, Sweden and Norway, James Elser, a limnologist in the School of Life Sciences at Arizona State University, and his colleagues found that, on average,...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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