Nutrient strategy hearings

Do you have questions you want to ask, or comments you want to make, about the Minnesota Pollution Control Agency’s draft strategy for reducing nitrogen and phosphorus in the Mississippi and Red rivers? The strategy calls for wringing a 20 percent reduction out of the more than 250 million pounds of nitrogen that Minnesota sends … Read more Nutrient strategy hearings

Nitrates linger decades in cropland soil

A 30-year study of nitrogen fertilizer use in France suggests that nitrate from the fertilizer lingers in the soil for decades and is likely to continue both being taken up by plants and leaking into groundwater for decades to come. The research was published Oct. 21 in the online edition of the Proceedings of the … Read more Nitrates linger decades in cropland soil

Iowa acts on ag pollution

Iowans – some Iowans, anyway – are taking very seriously the water pollution caused by many modern farming practices. The Iowa Board of Regents this month approved creation of an Iowa Nutrient Research Center at Iowa State University that will research ways to reduce the runoff of fertilizers into rivers and streams. Read a Radio … Read more Iowa acts on ag pollution

Video profiles Dave Legvold

Dave Legvold, a Northfield-area farmer, measures his corn crop’s success in dollars, not bushels. And that often means limiting nitrogen fertilizer use in ways that save him money while also reducing pollution in the streams and lakes downstream from his fields. View a Minnesota Pollution Control Agency video in which Legvold talks about using an … Read more Video profiles Dave Legvold

Star Tribune editorializes on nitrogen pollution

The Star Tribune, in a July 12 editorial, praises what it calls a “painfully honest” appraisal by the Minnesota Pollution Control Agency of our state’s nitrogen pollution problem. The report, issued in late June, documented that more than 70 percent of the nitrogen pollution of lakes and streams comes from agriculture. The editorial calls on … Read more Star Tribune editorializes on nitrogen pollution

Freshwater statement on MPCA nitrogen pollution report

The Freshwater Society made this statement about the Minnesota Pollution Control Agency’s report on nitrogen pollution of surface waters: The MPCA report is good work. It demonstrates the magnitude of Minnesota’s nitrogen pollution problem – 306 million pounds per year flowing into our rivers and streams. That nitrogen imperils fish and other aquatic life both … Read more Freshwater statement on MPCA nitrogen pollution report

New USGS report on streams

A new U.S. Geological Survey report on the water quality of rivers and streams across the country describes damage caused by reductions in flows and increased pollution from fertilizers and pesticides. The report, based on research conducted between 1993 and 2005, examines changes in algae, macroinvertebrates and fish. Stream health was reduced at the vast … Read more New USGS report on streams

EPA: Many U.S. streams badly polluted

More than half the streams and rivers in the United States are in poor condition for aquatic life, the Environmental Protection Agency announced this week. Major findings of the a huge research and testing effort,  according to an EPA news release, include: —  Nitrogen and phosphorus are at excessive levels. Twenty-seven percent of the nation’s … Read more EPA: Many U.S. streams badly polluted

Celebrate, take note of Clean Water Act

The Freshwater Society blog publishes a digest of important regional, national and international articles and research on water and the environment. Scan the articles here, then follow the links to read the articles in their entirety where they originally were published. Celebrate 40 years of — gradually — cleaner water The federal Clean Water Act, actually … Read more Celebrate, take note of Clean Water Act

Innovative Wisconsin phosphorus rules OK'd

The Freshwater Society blog publishes a digest of important regional, national and international articles and research on water and the environment. Scan the articles here, then follow the links to read the articles in their entirety where they originally were published.   EPA approves Wisconsin’s phosphorus rules The Environmental Protection Agency approved a first-of-its-kind program … Read more Innovative Wisconsin phosphorus rules OK'd