Badgers threaten Oregon dam's safety

An Oregon dam is at risk from badger tunnels and other passages created by burrowing animals.

Scientists protest threats to science in Boston

Hundreds of scientists, environmental advocates and their supporters are rallying in Boston to protest what they see as increasing threats to science and research in the U.S.

Water flowing over emergency spillway at Lake Oroville

Officials say water has begun flowing over the emergency spillway at Oroville Dam in Northern California for the first time since it opened in 1968.

Air stagnation advisory for parts of Washington, Oregon

Air quality has deteriorated in southeastern Washington and northeastern Oregon, prompting the National Weather Service to issue an air stagnation advisory through Monday afternoon.

Decision on grizzlies delayed; 100+ killed over 2 years

BILLINGS, Mont. -- Federal officials are delaying their decision on whether to lift protections for more than 700 grizzly bears in and around Yellowstone National Park and allow hunting.The delay comes amid opposition from dozens of American Indian tribes and conservation groups that say hunts could reverse the grizzly's four-decade recovery.Officials had planned to finalize the proposal to turn jurisdiction on grizzlies over to state wildlife agencies by the end of 2016.U.S. Fish and Wildlife Service Assistant Regional Director Michael Thabault said it could take the agency another six months to finish reviewing 650,000 public comments.More than 100 Yellowstone-area grizzlies have been killed in the past two years, often by wildlife managers following attacks on livestock and occasionally during run-ins with hunters.Thabault says the death rate is sustainable given the size of the population.

Rare ice circle forms in the Snoqualmie River (video)

NORTH BEND, Wash. -- Hikers near North Bend were treated to an unusual natural phenomenon this morning -- an ice circle spinning in the Snoqualmie River.The thin circular slab of ice is sometimes referred to as an ice disc and it forms on the outer bends in rivers where accelerating water creates a rotation.

Study documents tree species' decline due to climate warming

A study documenting mortality of yellow cedar trees in Alaska and British Columbia concludes the future is gloomy for the species valued for its commercial and cultural uses.

Inslee proposes carbon tax to raise money for schools

Gov. Jay Inslee will try to convince lawmakers to do something voters wouldn't last month — approve a new tax on carbon emissions from fossil fuels.

Navy to expand sonar, other training off Northwest coast

The U.S. Navy has finalized a plan to expand sonar testing and other warfare training off the coasts of Washington, Oregon, and northern California.

Crews to move Idaho's largest tree for construction

Crews are working to remove Idaho's largest sequoia tree from where it sits next to a hospital due to construction.

Washington voters to decide on nation's first carbon tax

Washington lawmakers have tried and failed in recent years to make big polluters pay for their carbon emissions to fight climate change. Now, voters will get to decide.