Washington officials said cap-and-trade auctions could raise $1.5 billion through FY 2024 while new fuel standards will boost gas by about one cent per gallon.

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.

The owner of Washington’s only non-utility gas-fired plant filed a suit over what it claims is discriminatory treatment in the state’s cap-and-trade program.

The non-utility owner of a Washington gas-fired power plant can receive free cap-and-trade allowances from the state, a government board decided.

Washington’s Supreme Court ruled that the state’s most prominent anti-tax activist cannot put a 2021 cap-and-trade law to a statewide public ballot.

The non-utility owner of a Washington gas-fired power plant says the facility faces unfair treatment under the state’s pending cap-and-trade program.

Initial prices for Washington cap-and-trade emissions allowances will depend on whether the state joins the Western Climate Initiative, according to new analysis.

Washington is launching a first-of-its-kind program to auction off carbon offset credits to preserve the state’s forest land.

A bill to impose a fee on banks investing in fossil fuels was among the biggest losers in the recent Washington state legislative session.