An 80-MW solar farm proposed for central Washington is moving closer to state approval.

Feedback split along predictable lines on Washington’s efforts to adopt California’s strict standards on zero-emission medium- and heavy-duty trucks.

Washington officials are moving to respond to the state's extreme drought after admitting they were taken by surprise by how quickly it developed.

Washington’s first pumped storage generator is expected to go online between 2028 and 2030, if it can obtain the needed state and federal approvals.

Washington officials have kicked off their work to adopt California’s transportation emissions standards, which will set targets for the adoption of ZEVs.

Blaming climate change, Washington Gov. Jay Inslee declared a drought emergency for nearly all of the state.

A Washington Supreme Court hearing provided a practice run for possible upcoming court battles over Gov. Inslee’s partial vetoes of recently passed climate bills.

Legislative leaders slammed Washington Gov. Jay Inslee’s veto of segments of cap-and-trade and low-carbon fuels standard bills.

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.

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.