U.S. Environmental Protection Agency

Revamped chemical safety law gives EPA more power
Revamped chemical safety law gives EPA more power
The bipartisan measure represents the most sweeping environmental law to pass Congress in decades.
A Gold King Mine Timeline
A Gold King Mine Timeline
A tangled history of profit, tragedy and unfulfilled dreams.
Fracking linked to groundwater contamination in Pavillion, Wyoming
Fracking linked to groundwater contamination in Pavillion, Wyoming
Contaminants that likely came from fracking were found in an aquifer that supplies drinking water.
Why are Western attorneys general going rogue?
Why are Western attorneys general going rogue?
Attorneys general sue the federal government, despite state governors’ objections.
EPA releases a stricter, health-based smog standard
EPA releases a stricter, health-based smog standard
Failure to meet the new requirements can trigger serious economic consequences for some communities.
Unlocking the mystery of the Four Corners Methane Hot Spot
Unlocking the mystery of the Four Corners Methane Hot Spot
Scientists zero in on the culprits behind a giant plume of greenhouse gases.
Gold King Mine water was headed for the Animas, anyway
Gold King Mine water was headed for the Animas, anyway
The nuts and bolts of acid mine drainage.
Animas dispatch: Hundreds celebrate the river’s reopening
Animas dispatch: Hundreds celebrate the river’s reopening
Durango may be moving on, but wider fears about the toxic spill still reverberate.
EPA proposes reducing methane leaks from oil and gas production
EPA proposes reducing methane leaks from oil and gas production
The regulations are part of Obama’s strategy to fight climate change.
Animas River spill: only the latest in 150 years of pollution
Animas River spill: only the latest in 150 years of pollution
Mapping the other threats to the Animas and San Juan Rivers.
Obama slashes greenhouse gas emissions from power plants
Obama slashes greenhouse gas emissions from power plants
The EPA's historic Clean Power Plan makes a big push for renewables.
Arrival of the cost-benefit state
Arrival of the cost-benefit state
The Supreme Court wants the Environmental Protection Agency to weigh human health against costs to industry.
Wilderness vs. mining, Roundup research and Western prisons
EPA to study effects of Roundup on 1,500 endangered species
EPA to study effects of Roundup on 1,500 endangered species
300 million pounds of glyphosate are used in the U.S. each year, but its impacts are largely unknown.
Old mines still plague Montana's Clark Fork
Old mines still plague Montana's Clark Fork
Why one of the nation's largest Superfund river sites can't address pollution from abandoned mines.
Court sides with industry on power plant emissions
Court sides with industry on power plant emissions
Supreme Court decision is a setback to one of the biggest environmental actions of the Obama administration.
Senate committee votes to block Obama's clean water rule
Senate committee votes to block Obama's clean water rule
Republicans say new rule would give the federal government too much authority over waterways and wetlands.
EPA says fracking could contaminate drinking water
EPA says fracking could contaminate drinking water
Feds identify no widespread problem but concede to insufficient data.
Senate approves major reform of the chemical safety law
Senate approves major reform of the chemical safety law
The biggest bipartisan environmental legislation to pass the Senate in decades.
More waterways likely protected under new EPA rule
More waterways likely protected under new EPA rule
The controversial Clean Water Act rule protects tributaries with any sign of water, no matter the flow.
Should states be responsible for protecting the atmosphere?
Should states be responsible for protecting the atmosphere?
A youth-led climate action campaign in Oregon gets its days in court.
EPA loophole allows streams of wastewater in Wyoming
EPA loophole allows streams of wastewater in Wyoming
Environmentalists challenge permits that result in dumping of toxic chemicals on tribal land.
Wyoming’s coal industry faces uncertain future
Wyoming’s coal industry faces uncertain future
New study examines threats to state’s coal-dependent economy.