Cal Poly professor Lucy Kerhoulas led a team of researchers in an investigation of powerline corridors to help PG&E better understand how vegetation maintenance can sometimes contribute to power outages and wildfires.

This roadmap offers more alternatives than plans from other states.

A bill to shield information about California’s embattled bullet train is adding new political scrutiny to the rail project as the state grapples with a loss of federal funding.

The Environmental Protection Agency rescinded the legal foundation for U.S. climate policy. California is preparing to sue — and may try to write its own rules.

By “crowd-sourcing” electricity from solar panels and home batteries, the virtual power plant approach can get communities through extreme weather events.

Oregon begins phasing in new recycling rules under a 2021 law that standardizes curbside recycling, shifts costs to producers and tightens processing standards.

If conditions don’t change, it could spell a challenging year ahead for cities, aquatic wildlife, outdoor recreation, farming, hydropower facilities, and, possibly, a longer-lasting wildfire season.

Lawmakers are looking at freezing open positions and pulling money from certain programs as they work to avoid deep layoffs at the Oregon Department of Transportation.

Even after legalization, illicit cannabis grows continue to pollute California’s public lands. And the contamination, new research shows, lingers.

House Bill 4080 would create a blueprint for balcony solar in Oregon, at a time when people are already installing these systems.

Oregon State University scientist Jane Lubchenco played a key role in developing the United Nations High Seas Treaty on ocean conservation.

New budget language lays out how Gov. Gavin Newsom plans to structure a $200 million electric vehicle rebate program, including price caps, automaker matching funds and a focus on first-time buyers.