December 4, 2025

Will Energy From Manure Help or Harm Water Quality in Michigan?

HARTFORD, MI – Gov. Gretchen Whitmer’s plan to generate all of Michigan’s energy from renewable sources by 2040 is meant to limit climate change gases. It also has consequences for improving or damaging the state’s waters. Replacing polluting fossil fuel plants with cleaner energy sources would limit oil pipeline spills, curtail mercury contamination, and halt discharges from coal-fired power plants. But those benefits could be easily overwhelmed by the development of a new renewable energy …

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Manure Biodigesters Raising a Stink

AMES, IOWA – Because crop farmers can apply as much commercial fertilizer as they like to farmland, and livestock farmers spread over one billion tons of raw livestock feces and urine, the U.S. Environmental Protection Agency has identified nutrient discharges from U.S. agriculture as “the single greatest challenge to our nation’s water quality.” The E.P.A.’s effort in stemming the pollution, though, has been listless for decades. And the farm sector categorically rejects accountability and responsibility …

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EPA Orders Minnesota to Protect Residents From Toxic Farm Nutrients

For two years I’ve investigated and reported on the biggest water pollution scandal in the United States — the mammoth unregulated discharge of phosphorus and nitrates from commercial fertilizer and manure into the nation’s surface and groundwater. Agriculture is the source of the worst water pollution in the country’s history. More than coal mining and combustion. More than chemical or steel manufacturing. More than oil refining. More than sewage treatment. More than hard rock mining. …

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“What We’re Up Against” – Pelican Township and Other North Dakota Towns Fight Farm Bureau to Keep Water Clean

DEVILS LAKE, ND – When Clark Steinhaus first heard about a plan to build a feeding operation for 2,499 hogs near the shoreline of North Dakota’s largest natural lake, he was alarmed. As chair of Pelican Township’s board of supervisors, Steinhaus worried the manure generated by so many hogs could easily contaminate area waterways, including 160,000-acre Devils Lake and its 375 miles of shoreline. His concerns were not surprising given the fact that each year, …

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Toxic Farm Nutrients and Cancer in Minnesota

BERNE, MINN. — On a hot afternoon in mid-July, Brian Bennerotte, who was raised on a farm in the hill country south of Minneapolis in the 1960s and 1970s, made a pilgrimage of sorts to County Road B in Dodge County in his home state. Running straight as a gun barrel east and west, the gravel and dirt road crosses what was once rolling prairie before being steadily converted into crop and livestock farms in …

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Offering Up Advice For Farmers, Universities Add To US Water Pollution

WINONA, MN. — Corn drapes every curve and rise here in Winona County, Minnesota – seemingly endless fields of grain that contribute to the food, fuel and finances of a robust US agricultural economy. But the bucolic landscape belies a dark and dangerous truth: Much of the groundwater in the porous limestone beneath Winona County is contaminated with some of the nation’s highest levels of nitrates — harmful pollutants released into the environment by the …

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Big Ag Pollutes America’s Waters and Makes Money Doing It

It’s been 33 years since an Iowa State University agronomist named Fred Blackmer thought he’d struck gold for Midwestern corn farmers. Using a fairly simple three-step method, Blackmer developed an analytical tool that could accurately tell farmers exactly how much fertilizer their fields needed to produce abundant harvests each season. The analytics Blackmer perfected showed not only how much fertilizer the corn crops would need to meet production targets, but also exposed how much could …

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In Iowa, A Tale of Academic Intimidation and Contaminated Water

IOWA CITY, IOWA  — There’s no mystery that fertilizer and manure running off farm fields are the primary cause of Iowa’s wretched water quality. Farm fields laden with synthetic fertilizers and manure produce bounties of over 2 billion bushels of corn each year. Data from the Iowa Water Quality Information System, the state’s advanced monitoring network, shows those same fields also produce a torrent of run-off that contaminates virtually every mile of streams and rivers …

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Chris Jones, Author of “The Swine Republic,” Unexpectedly Resigns Post at University of Iowa

In the realm of the important-but-obscure, a place I’ve resided for most of my professional life, Chris Jones is a hero. A research engineer at the University of Iowa, Jones studies and writes with masterful expertise about agriculture, the environment, and water. Put those three elements together, and consider that state and federal law essentially immunizes crop and livestock farms from responsibly managing their nitrogen and phosphorus wastes. The result is a disturbing but familiar …

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Ethanol and Methane Put US Farms at Center of US Energy Strategy

With the exception of federal and state programs to convert corn into ethanol and soybeans into biodiesel to fuel cars and trucks the United States has never regarded farming as a primary energy producer. That changed when Congress passed the climate provisions of the Inflation Reduction Act last August. The law provides $140 billion in tax incentives, direct loans, and grants to replace fossil fuels with cleaner renewable energy that lowers emissions of carbon dioxide. …

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