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Environmentalists and industry had opposed sulfate formula as unworkable, costly.
Suit challenges governor's decision to halt minerals exploration.
Regulators give their tentative blessing to Minnesota's first copper-nickel mine.
A free well-testing program for Minnesotans has become the latest target in the state's increasingly fractious battle over water and agricultural pollution.
Department of the Interior reverses Obama-era denial of Twin Metals copper-nickel leases.
In hearing on request to dismiss suit, company argues that the state agreed not to sue years ago.
Half would go for long-term water treatment after copper-nickel mine closes.
"Financial assurance" is a final step in the company's long application to start mining.
Gov. Dayton ordered all state agencies to hit aggressive and specific environmental goals in the next decade and a half.
Minnesota farmers depend on chlorpyrifos, but dozens of studies say it harms kids.
Court filing cracks open 3M's internal research on PFCs, raises new questions about risks for residents.
MPCA cited repeat violations in Crookston, East Grand Forks locations.
Minnesota Attorney General Lori Swanson filed suit over groundwater contamination in Oakdale, other suburbs, alleging that the company caused $5 billion worth of health and environmental damages.
University of Wisconsin analysis refuels the debate over renewables.
Retired U Prof. Deborah Swackhamer says Trump administration is downgrading science.
New strategy relies on farmers to minimize the impact on water, placing farmers' yields above groundwater protection.
A survey of 1,000 homeowners shows thirsty turf is sucking down the metro's water. On average, residents watered 500 square feet of pavement.
The number of wolves in northeast Minnesota jumped 25 percent in the past year, most likely because deer, their favorite prey, saw a similar increase in population.
Judge Margaret Marrinan said the state has failed to protect the lake from excessive groundwater pumping and ordered the DNR to limit water use in the surrounding communities.
Twin Cities talk show radio host and producer Tammy Raasch had that remarkable combination of effervescence and doggedness that made her one of the best…
Neighbors opposed to a pending 4,700-hog operation measured air quality at other sites.
Wildfires, hot air and sun to create unhealthy air.
Breakthrough will help processors, farmers gauge true cost of raising crop.
Attorneys described the ruling as a turning point in the long-running battle over the project, one that could force negotiations.
Billions in spending aiding the fight against threats like runoff, warming climate.
Climate change means more native burrowing bugs survive to reproduce and harm tamaracks.
A national watchdog group says Wisconsin bear hunters are harassing wolves with their dog packs — then claiming state compensation when their hounds are killed.
Conservationists see it as a test of how the state will manage Minnesota's northern forests now that Gov. Mark Dayton has directed the DNR to increase timber harvests from state lands.
Drinking water for several hundred homeowners is at stake in recent standoff.
Scott Pruitt, the nation's top environmental officer, said Wednesday that he stands firmly behind continued federal funding for a landmark cleanup of Great Lakes pollution — a sharp contrast to the Trump administration's proposed budget, which would essentially kill the program.
It wants the state to prove latest costs are tied to company's operations.
The idea for "Orbacles" was in part inspired by the bird controversy at U.S. Bank Stadium, which looms over the sculptures on the east side the park.
Members of key science advisory panel told to reapply for posts when their term ends.
St. Anthony Lock and Dam closed two years ago, and now the Army Corps of Engineers is considering what to do with it. Advocacy and government groups are lining up with their ideas.
A dozen other governors have pledged to uphold their own version of the Paris accord.
It was a bus accident that changed the course of Mike Cullen's life. It nearly killed the little boy from northern Minnesota, but it set…
With a plan adopted in 2007, the state has been a national leader in pursuing an aggressive plan to reduce emissions.
Proposed cut to Great Lakes fund comes at delicate time for St. Louis River.
New limits, half the level set last year by the E.P.A., mainly affect east metro and Bemidji drinking water.
Scientists are identifying planting spots that will be strongholds against climate change.
Mining firm doesn't have the cash to handle long-term cleanup, report says.
Federal judge rules agency should consider impact of new pesticides on endangered species.
The sudden overhaul of a key advisory panel at the U.S. Environmental Protection Agency sends a worrisome signal that science will take a back seat to industry under the Trump administration, according to a respected University of Minnesota scientist who chairs the panel.
State GOP adds tweaks to bill that could hurt wetland.
Goodhue trucking firm tried to hide its "blatant" actions, state says.
A struggle over feedlots has spilled over into the state Legislature, where pork producers are trying to limit so-called nuisance suits brought by feedlot neighbors.
Twin Cities is a hot spot in a national study of lakes and road-salt runoff. It showed that salt concentrations in the Mississippi, mostly from road salt, have increased 81 percent since 1985.
Budget proposals moving through the Republican-controlled Legislature would continue what park officials say is a decadelong dilemma: Operating funds for the state's 75 parks have declined, after accounting for inflation, while the number of Minnesotans who use them continues to increase every year.
The U of M study takes a close look at precisely where phosphorus and nitrogen come from and where they go in Twin Cities' neighborhoods. It's the first to track how households contribute to water pollution.
Tighter standards for chemical once used by 3M prompt more drinking water tests.
State law and industry forces have already set course toward renewable energy.
The Minnesota Department of Transportation's first economic impact analysis of the state's cycling industry also found that 13.6 percent of Twin Cities residents commute by bike, at least once in a while.
Breakthrough done so far only in a lab could solve one of most widespread pollution problems.
Its pollinator seed giveaway was a huge hit, but some advocates challenge the flower mix.
Auditor says state is just starting to track water quality improvements.
About 1,000 people showed up to hear views on a potential 20-year ban on copper-nickel mining.
The Butcher & the Boar restaurant in downtown Minneapolis had 1,200 Facebook friends even before it opened in 2012. Like its sister property, Bar La…
But cutting the grass could deplete much-needed wildlife habitat, state says.
Proposed Trump budget would slash Great Lakes cleanup, other programs.
In Minnesota, 11,500 vehicles must be repowered or replaced.
Pollution officials this month began rolling out a new set of rules requiring property owners to test for and address vapors before transferring property.
Minnesota's pork industry roiled by environmental worries over feedlot runoff.
Environmental group says 6,650 National Forest acres were grossly undervalued.
Millions in environmental funds had been frozen by Trump administration.
For the first time since 1976, Minnesota has adopted a uniform framework for how the 21 cities and five counties along the river's banks will manage the river to protect the water.
They say U.S. agencies gave away land critical to both endangered predators.
The U.S. Forest Service approved a deal to trade land with PolyMet Mining Corp., a critical step that will allow PolyMet to dig a major open pit mine in northern Minnesota.
Two friends were out for a ride on New Year's Eve.
The dispute centers on the question of whether Minnesota has a say on dam construction.
Kishkis died Dec. 15, just six days shy of her 89th birthday.
The National Park Service has proposed transplanting up to 30 wolves to Isle Royale, a historic decision that concedes that extraordinary steps are needed to restore a healthy balance of predator and prey on the wilderness island in Lake Superior.
Regulators could block the industry in huge swath of the BWCA watershed.
With steely resolve, Becky Rom builds a campaign against mining. And once again, she has set many in her hometown of Ely against her.
After debate over jobs and land, the ban passed 3-2.
Cry for help from 13 environmental groups says decades of voluntary measures and light touch by feds don't work.
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