A rent control plank prompted the greatest opposition to a Washington Senate bill to trim the carbon footprint of roughly 50,000 buildings in the state.

Cap-and-trade is expected to yield Washington $500 million a year in revenue, according to the state agency charged with running the program.

Washington is considering a bill that would require public water systems serving 1,000 or more connections to include a “climate resilience element” in system plans.

A bill to regulate methane emissions from landfills drew praise and concerns during hearing of the Washington House Environment and Energy Committee.

Washington lawmakers will confront more than a dozen climate bills in their upcoming short session.

Western states produced a whirlwind of climate initiatives last year, advancing numerous bills and regulations to reach net-zero emissions by 2050.

Gov. Jay Inslee approved the 80-MW Goose Prairie solar farm to be built in Central Washington.

Washington Gov. Jay Inslee unveiled a $626 million climate change policy wish list for state lawmakers to tackle in the 2022 session.

A Washington state senator wants to create a “climate resiliency fee” on global financial institutions operating in the state that fund fossil fuel projects.

In its upcoming session, Washington lawmakers will likely set up millions in funding to deal with a probable drought in 2022.