Washington’s legislature passed a low-carbon fuel standard bill that will require refiners to reduce the carbon in motor fuels sold in state.

Washington is on its way to becoming the second state to have a comprehensive cap-and-trade program after a Senate vote approving the bill.

Two bills intended to help decarbonize Washington’s transportation sector are headed to the desk of Gov. Jay Inslee, who is expected to approve both.

The Wash. House voted 56-42 to send Gov. Jay Inslee a bill aimed at reducing greenhouse gas emissions from air conditioners and large refrigeration units.

The Democrat-controlled Washington Senate barely passed a cap-and-trade bill designed to trim industrial carbon emissions.

The Washington Senate approved a bill that would require an increased use of biofuels to cut carbon emissions from vehicles.

A bill to dramatically reduce Washington’s GHG emissions from large refrigeration and air conditioners is near a final vote in the Senate.

A bill to require consideration of climate change in land use planning appears headed toward approval in the Washington state legislature.

A House bill sponsored by a Washington congresswoman seeks to measure cow methane emissions and pinpoint ways to reduce them.

The Washington House passed a bill to encourage all-electric heating designs in publicly owned or leased facilities.