U.S. Environmental Protection Agency

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.
New Mexico senator takes a beating over toxics regulation
New Mexico senator takes a beating over toxics regulation
Tom Udall’s bill could improve chemical safety — but has many opponents.
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.
Supreme Court wrestles with air-pollution rule
Supreme Court wrestles with air-pollution rule
Should the EPA have considered how expensive the new regs would be for operators?
States give Senate an earful on EPA greenhouse gas plan
States give Senate an earful on EPA greenhouse gas plan
Wyoming critiques federal coal plant cleanup at Senate hearing.
Latest: California fracking companies inject protected aquifers with wastewater
Latest: California fracking companies inject protected aquifers with wastewater
EPA found that state regulators allowed 2,500 to be contaminated.
Utah burn ban ignites outrage over ‘basic freedoms’
Utah burn ban ignites outrage over ‘basic freedoms’
The right to burn versus the right to breathe.
The Latest: EPA released final cleanup order for Duwamish River
The Latest: EPA released final cleanup order for Duwamish River
A million cubic yards of toxic sludge will be dredged from Seattle’s only river.