Recent content from Chloe Johnson
Administrative Law Judge James E. LaFave wrote that PolyMet's plan to block tailings seepage with bentonite clay would not meet state rules for reactive mine waste.
In a draft list of violations released in August, the EPA said Smith Foundry had been polluting its neighborhood's air and breaking air quality limits for five years.
The city fixed the problem after Jim Hagen's years of complaints. Now he wants others to get the same relief.
Humans created many of the state's deepest water bodies.
The Environmental Protection Agency made a surprise visit to the iron foundry in May, and said it found a raft of problems. But Minnesota regulators insist they don't have the data to show Smith released excess soot.
Already impaired by taconite mine pollution, Birch Lake could face new threats from a proposed copper-nickel mine, environmentalists say.
The mining company will be allowed to sink six holes to explore state minerals near Birch Lake in St. Louis County.
At least two sites — Duluth airport and the National Guard's Camp Ripley — are already suspects for contamination.
Twin Metals asked to sink six new holes in northeastern Minnesota as it searches for copper, nickel and platinum group metals.
Scientists have known for years that treating water with chlorine or other chemicals can create toxic compounds; now, four teams will use EPA grants to find alternatives.
The dryness is harming farmers' yields and cattle, and could dim fall colors.
Natalia Mossmann Koch is testing the heavy metals absorbed by lichen as a low-cost way to measure air pollution.
The proposed copper-nickel mine, which would be in the watershed of the Boundary Waters Canoe Area Wilderness, has faced an uphill battle with the Biden Administration.
A year of record-breaking fires in Canada means it's likely that some blazes will continue to burn until snow starts falling.
After 50 years, the Minnesota Pollution Control Agency is enforcing a limit on sulfates, which can convert to toxic sulfides that kill wild rice.
The Minnesota Pollution Control Agency didn't adequately consider the NorthMet mine's threat to water quality, the court ruled.
The man in his 20s was shot when an argument escalated outside an unlicensed nightclub, police said.
The cluster of cases are linked to the same source, but investigators are still trying to identify where the milk came from.
A cluster of cases is located in northern Minnesota and Wisconsin, far from the tick's known range in the southern and eastern United States.
The Army Corps of Engineers was awarded a quarter of the money it wanted to study whether to keep, sell or remove two locks and dams on the river between Minneapolis and St. Paul.
Xcel Energy's Monticello Nuclear Generating Station sprung a tritium leak last year, and containing the underground radiation has proved a challenge.
There's a not-in-my-backyard mentality surrounding new hardrock mine projects.
The Minnesota Pollution Control Agency said it's likely they will extend a roughly 36-hour warning for wildfire smoke.
Two men and a girl disappeared under the water at the confluence with the Mississippi River and haven't been seen again.
The Star Tribune asked readers for their questions on Canadian wildfire smoke and bad air quality. We've gathered some answers — and tips on how to protect yourself and your family.
Wildfire smoke has forced Twin Cities parks and schools to cancel some outdoor programs this summer.
The Minnesota Pollution Control Agency has issued yet another warning of bad air quality across this state, this time until midnight Thursday.Expect more as…
Smoke from two different regions in Canada has combined to make the air unhealthy for all groups.
Talon Metals' high-grade nickel mine has the backing of Tesla and the White House, but the Mille Lacs tribe worries about threats to wild rice.
The project is likely to receive the same scrutiny over its pollution potential that has stalled two other proposed hardrock mines.
At 6 p.m., St. Paul had the worst air quality in the United States. "I think it's fair to say probably this one now is the worst episode in the Twin Cities," an air quality meteorologist with the MPCA said as the agency expanded its advisory into central Minnesota until early Friday.
Dry conditions across most of the state are worrying farmers and raising the risk of wildfires.
As Canadian blazes send haze down to Minnesota, New York and elsewhere, there are ways to avoid the damage from fine particles in the air, experts said.
The mine project launched by PolyMet, now run by NewRange Copper Nickel, may have to significantly change its design to get a new wetlands permit.
The study offered a wide range of costs — up to $28 billion — to implement still-new technologies that would remove and destroy "forever chemicals" from wastewater.
The Minnesota Department of Natural Resources concluded it needs to expand a protective buffer around the Boundary Waters to protect the area from light and noise pollution.
The appropriation for a permanent fix for the small town of Bovey was approved after decades of discussion on how to drain the Canisteo Mine Pit.
Homeowners may not see their pipes replaced immediately but should know in the next year whether their service lines are lead.
A condition slipped into the state's infrastructure borrowing bill is a boon to activists.
Keith Ellison and nine other attorneys general asked the Consumer Product Safety Commission to crack down on NO2 and other pollution from gas cooktops.
Canadian wildfires are burning earlier than expected this year and could bring poor air quality on and off through the summer.
The bill features a broad ban on PFAS and $1 billion in new spending for environment and energy projects.
Douglas Corp. in St. Louis Park has been a suspected source of PFAS and chromium for years, and agreed to a settlement with MPCA and DNR.
The Canadian Pacific-Kansas City Southern merger will bring tens of thousands more carloads per year of hazardous materials.
Several agencies responded to try to put out the blaze.
Jennifer Lynn Matter, 51, of Red Wing, admitted to leaving her child on a beach along Lake Pepin in December 2003.
Northern Metal Recycling filed suit against state regulators and Crow Wing Recycling.
A new EPA rule unveiled last week will limit by 84% ethylene oxide emissions from companies that clean medical instruments.
Comments by EPA Administrator Michael Regan indicate a growing consensus that "forever chemicals" are taking a serious toll on Americans' health.
This half-century-old law recently earned a spot as a question on "Jeopardy."
The death of an estimated 230 fish in the river was caused by a quick change in water temperature, officials said.
The well that first showed evidence of a tritium leak now shows levels about half the original amount, MPCA says
Xcel and the Minnesota Pollution Control Agency both said the 400,000-gallon spill posed no threat to drinking water or the nearby Mississippi River.
Minnesota already has health standards for PFAS in drinking water.
The CoCoRaHS rain and snow observation network has 20,000 members across the country, and Minnesota leads in adding new volunteers.
Weatherization and adding high-efficiency electrical appliances could cost up to $1.24 billion more than typical home fixes, the Center for Energy and the Environment says.
Bills to ban PFAS in household goods and require more reporting on what products contain them are moving through committees in the House and Senate
Groups are pushing the county to stop burning trash at the Hennepin Energy Recovery Center.
The facility has no limits on how much selenium it can release into the Mississippi River, but state officials said the pollution isn't harming overall water quality.
Recyclers that tear up cars and appliances with hammermills are under the lens of the Minnesota Pollution Control Agency, officials said
The state Senate narrowly approved a requirement along party lines that utilities meet escalating carbon cuts over the next 17 years. The House passed the bill last week.
Several companies, including Claros Technologies in Minnesota, are trying to engineer ways to destroy PFAS chemicals.
The metal shredder must install pollution control measures.
The move follows a study that concluded mining could damage the Boundary Waters Canoe Area Wilderness; Twin Metals mine had been slated for the area.
The ReUse Program diverts hundreds of tons of material from landfills and incineration each year.
Julissa Thaler was already charged with second-degree murder.
Thomas Rhodes was convicted of murdering his wife, but conviction review investigators say inaccurate testimony and withheld evidence wrongfully put him behind bars.
The 2040 standard would push utilities to ditch coal, natural gas and other planet-warming energy sources 10 years sooner than do current plans.
The city's air monitoring program is designed to bring data to residents, but some say more action is needed against industrial sites.
We track the status of top issues in the 2023 legislative session.
The company said last week it would no longer make the chemicals, which don't break down in the environment and linger in bodies. But researchers and advocates said the contamination would persist.
Blandin Paper Co. claims in court documents the USDA caused significant flooding and damage when it removed a beaver dam in Itasca County in 2019.
While Minnesota is no stranger to blasts of cold winter air, systems like the one that has blanketed the United States this week may be linked to a warmer climate.
3M will also "work to discontinue use of PFAS across our product portfolio" by 2025.
The state chose in 2015 to hire an outside firm to handle the challenges, but environmental groups question that decision, noting that the firm represents mining interests in the U.S. and around the world.