Municipal utility Seattle City Light wants the same legislative green light to manufacture hydrogen for fuel as Washington’s PUDs have received.

Washington officials agree with Gov. Jay Inslee's views that state agencies must speed up efforts to reduce their internal GHG emissions.

Green energy advocates clashed with activists aiming to protect the habitat of an endangered bird species at a hearing on a proposed solar farm in Central Wash.

Washington officials have begun the nuts-and-bolts rulemaking on three major climate change bills the state’s legislature passed in April.

The leaders of Oregon, Washington and British Columbia signed an MOU to push for development of an ultra-high-speed train line designed to reduce GHGs.

Private investors poured an additional $500 million into a company that believes the fusion reactor it’s developing can achieve net electricity generation.

Washington will convert its entire state-owned vehicle fleet to electric by 2040, according to an executive order issued by Gov. Jay Inslee.

GHG pledges made ahead of COP26 “significantly” increase the chance that global warming can be limited to under 2 degrees Celsius by 2100, report says.

Seattle has opened the doors to what could be the country's first net-zero sports and entertainment complex: the Climate Pledge Arena.

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