Washington’s first cap-and-trade auction earned the state nearly $300 million in revenue and unloaded all allowances on offer.

Washington lawmakers won’t know until mid-March how much cap-and-trade revenue they will be able to spend during the 2023-25 budget period.

Washington’s 2023 legislature will offer less revolutionary climate action compared with previous years, but many environmental bills are still in the works.

An effort to reopen Washington’s last standing aluminum plant with a lower carbon footprint faltered after BPA declined to guarantee low-cost energy.

Washington Gov. Jay Inslee will seek millions in state funding to establish a Washington State University program dedicated to researching sustainable energy.

Washington Gov. Jay Inslee thinks the state government should explore joining with businesses to build and share EV charging sites.

Two Western governors speaking at COP27 said they see states leading the federal government in tackling climate change measures on the ground in the U.S.

Washington needs to do a large amount of legwork to prepare for Gov. Inslee’s mandate banning the sale of new gas-powered cars by 2035, state officials said.

EPA on Wednesday announced it is distributing nearly $1 billion in grants to 389 school districts across the U.S. to buy cleaner buses, most of them electric.

Leaders from the three West Coast states and the Canadian province of British Columbia signed an agreement pledging to cooperate on climate change measures.