Dozens of wildfires raged in the arid U.S. West on Tuesday, blackening hundreds of square miles of land and forcing residents from homes in California and Washington state.

SEATTLE (AP) — Washington state regulators on Wednesday unveiled an updated plan to limit greenhouse gas emissions from large polluters, the latest attempt by Gov.

A CSX freight train derailed in northeastern Washington on Sunday, spilling hazardous material near a subway station and disrupting commuter rail and long-distance Amtrak passenger trains but causi

Washington, D.C and another five U.S. states along the U.S.

More than half of U.S. states are poorly prepared to respond to infectious disease outbreaks, a new report says.

At least three people were killed and about 250,000 homes and businesses were without power in Washington state on Wednesday after a storm blew down trees and triggered mudslides, authorities said.

The greater metropolitan Washington area’s water supply could face “considerable stress” by 2035, requiring mandatory water-use restrictions, if the region were to experience a drought, according t

A powerful windstorm toppled trees, killing two people in Washington state as work crews scrambled on Sunday to restore power to 450,000 customers, a TV report showed.

The flames that claimed the lives of three firefighters, injured four others and burned 200 homes also inspired an outpouring of volunteers who have been invited for the first time in state history

Reduced winds on Saturday helped firefighters gain the upper hand against a series of giant wildfires in north-central Washington that earlier left three firefighters dead.