U.S. Environmental Protection Agency

Remembering an environmental science pioneer
Remembering an environmental science pioneer
Theo Colborn uncovered effects of chemicals, like those used in fracking, on the human body.
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.
Cleaner air for the Cowboy State
Cleaner air for the Cowboy State
Even remote spots like the Wind Rivers could benefit from the EPA's proposed crack down on polluters.
Duwamish River to get $342 million more for cleanup
Duwamish River to get $342 million more for cleanup
The EPA's order aims to undo decades of industrial pollution to Seattle's only river.
The Uintah Basin's tricky oil and gas ozone problem
The Uintah Basin's tricky oil and gas ozone problem
Can officials greenlight booming development and clean up the air at the same time?
More pesticides are permeating urban streams
More pesticides are permeating urban streams
But rural rivers are getting cleaner, a new study says.
The Latest: EPA cuts pollution at the Navajo Generating Station
The Latest: EPA cuts pollution at the Navajo Generating Station
75 percent less haze predicted for nearby parks.
Idaho’s sewer system is the Snake River
Idaho’s sewer system is the Snake River
As Big Ag flourishes, this massive waterway suffers.
Is Canada's massive mine waste spill a sign of things to come?
A historic moment for the Clean Air Act
A historic moment for the Clean Air Act
How it arrived and how much it matters for the climate.
Is coal dead?
Is coal dead?
Which plants are slated for closure or switches to natural gas.
River of no return
River of no return
Seattle’s Duwamish has been straightened, dredged and heavily polluted. Can a Superfund cleanup bring it back to life?
Duwamish sludge, from source to sink
Duwamish sludge, from source to sink
A close look at ‘Seattle’s toilet’