Latest Eutrophication Stories

NEW YORK, Sept. 24, 2012 /PRNewswire/ -- Bion Environmental Technologies, Inc. (OTC QB/BB: BNET) -- Food security and the direct impacts of food production on the environment and public health are issues of growing worldwide importance. These and other issues were discussed at the 2012 World Water Week, recently held in Stockholm, Sweden. Additionally, the 2012 Clinton Global Initiative Annual Meeting, Designing for Impact, being held this week in New York, has committed to a focus on...

'High microcystin concentrations occur only at low nitrogen-to-phosphorus ratios in nutrient-rich Canadian lakes' Nutrient pollution, one of the greatest threats to our freshwater resources, is responsible for the algal blooms that blanket our lakes and waterways in summer months. Large blooms of cyanobacteria ('blue green algae') can cause fish kills, increase the cost of drinking water treatment, devalue shoreline properties, and pose health risks to people, pets, and wildlife. A new...

NEW YORK, July 16, 2012 /PRNewswire/ -- Bion Environmental Technologies, Inc. (OTC BB/QB: BNET) today announced that PA Senate Bill 1263 Section 1764F has been included in the budget recently signed by Governor Tom Corbett. The fiscal code amendment calls for "a review of the cost, environmental, recreational and public health and safety impact and other benefits realized by the Commonwealth and Municipalities from reductions of water quality impairment from nutrients in major...

A new study led by the University of Colorado Boulder indicates air pollution in the form of nitrogen compounds emanating from power plants, automobiles and agriculture is changing the alpine vegetation in Rocky Mountain National Park. The emissions of nitrogen compounds to the atmosphere are being carried to remote areas of the park, altering sensitive ecosystems, said CU-Boulder Professor William Bowman, who directs CU-Boulder's Mountain Research Station west of Boulder and who led the...

Findings show need to reevaluate fungicide safety, researchers say Chlorothalonil, one of the world's most common fungicides used pervasively on food crops and golf courses, was lethal to a wide variety of freshwater organisms in a new study, University of South Florida researchers said Wednesday. Biologists Taegan McMahon and Jason Rohr, co-authors of the study published in the journal Ecology Letters, report that chlorothalonil killed amphibians, snails, zooplankton, algae, and...

Past disturbances, such as logging, can obscure the effects of climate change on forest ecosystems. So reports a study just published in the Proceedings of the National Academy of Sciences. The paper, exploring nitrogen dynamics, found that untangling climate impacts from other factors can be difficult, even when scientists have access to decades of data on a forest's environmental conditions. Co-author Dr. Gene E. Likens of the Cary Institute comments, "Understanding how climate change is...

Highlights new research, and offers solutions for a nitrogen-soaked world The nitrogen cycle has been profoundly altered by human activities, and that in turn is affecting human health, air and water quality, and biodiversity in the U.S., according to a multi-disciplinary team of scientists writing in the 15th publication of the Ecological Society of America’s Issues in Ecology. In “Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions,” lead author Eric Davidson...

Interdisciplinary panel reviews US nitrogen pollution trends, risks, and mitigation strategies Nitrogen is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds billions, a benefit and a hazard, depending on form, location, and quantity. Agriculture, industry and transportation have spread nitrogen liberally around the planet, say sixteen scientists in the latest edition of ESA's Issues in Ecology series, "Excess Nitrogen in the U.S....

Nitrogen derived from human activities has polluted lakes throughout the Northern Hemisphere for more than a century and the fingerprint of these changes is evident even in remote lakes located thousands of miles from the nearest city, industrial area or farm. The findings, published in the journal Science Dec. 16, are based on historical changes in the chemical composition of bottom deposits in 36 lakes using an approach similar to aquatic archeology. More than three quarters of the...

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 and Thailand show the first evidence of long-term effects of nitrogen pollution in tropical trees. "Air pollution is fertilizing tropical forests with one of the most important nutrients for growth," said S. Joseph Wright, staff scientist at the Smithsonian Tropical Research...