A sample of albacore tuna caught off the shores of Oregon and Washington state have small levels of radioactivity from the 2011 Fukushima nuclear disaster in Japan, researchers said on Tuesday.

Washington Governor Jay Inslee outlined policies on Tuesday to cut greenhouse gas emissions from the state, including a carbon cap-and-trade program, although he will need approval from the state l

Yesterday the U.S. Environmental Protection Agency (EPA) released its sixth annual list of the 25 U.S. metropolitan areas with the most ENERGY STAR certified buildings in 2013.

The death toll from the landslide that hit the Washington town of Oso rose to 33 on Monday, according to the Snohomish County medical examiner's office, which said all but three have been identifie

A decade before a colossal landslide buried a Washington community, county officials considered buying up people's homes there to protect them from such a disaster.

Efforts to recover bodies following a Washington state mudslide that killed at least 29 people could be hampered in the coming weeks if melting snow runs into a clogged river at the disaster site,

Rescuers digging through the debris of a monster landslide in the U.S.

On Wednesday night, Snohomish County Emergency Management Director John Pennington told reporters the number of people unaccounted for had dropped to 90 from 176 the previous day, as dozens of peop

Rescue workers combed through muck and rubble on Tuesday left by a devastating weekend mudslide in Washington state that killed at least 14 people and left scores more missing, and authorities said

As many as 108 people were listed as missing two days after a mudslide hit dozens of homes and killed at least eight people in Washington state, but many individuals still unaccounted for are ultim