EPA's new rules to clean up heavy trucking met with support and criticism The EPA has finalized the strictest-ever limits on greenhouse gas emissions from heavy-duty trucks, a category that includes everything from buses to garbage trucks. Camila Domonoske
National The Colorado River rarely reaches the sea. Here's why More than half of the Colorado River's water is used to grow crops, primarily livestock feed, a new study finds. The river and its users are facing tough decisions as the climate warms. Nathan Rott
More than 20% of new cars purchased in Washington state are electric (boogie woogie woogie) Demand for electric vehicles has been surging more in Washington than in any other state, according to data provided by the Electric Power Research Institute. John Ryan
California wants to protect indoor workers from heat. That goal is now in limbo The state was on the cusp of making new rules to protect people who work in places like warehouses from dangerous heat. A last-minute shake-up leaves workers wondering if they'll be safe come summer. Alejandra Borunda
Pickle-shaped sea creatures popping up along the NW coast, why it’s important Scientists are studying odd, pickle-shaped sea creatures they found off the coasts of Oregon and Washington. They’re known as pyrosomes. Courtney Flatt
Price of carbon plummets at latest Washington state auction The price of pollution has plummeted in Washington state’s latest carbon auction. John Ryan
National Old power lines plus climate change mean a growing risk of utilities starting fires Texas investigators say the largest wildfire in state history appears to be caused by a power line. Aging utility infrastructure ups the risk of starting wildfires as the climate heats up. Julia Simon
U.S. has warmest winter on record – and no, that's not a good thing From lack of snow to wildfires, a record-warm winter had impacts across the country. Scientists say winters are warming faster than any other season in the U.S. Lauren Sommer
Washington holds first carbon auction of 2024, with program's future in doubt A ballot initiative aiming to stop Washington state from charging for carbon pollution is already reshaping the state’s carbon market. John Ryan
U.S. hydropower drops to 20-year low as Northwest snowpack shrinks After a week of heavy storms that dumped 5 feet of snow in the Cascades and left skiers giddy, Washington state’s snowpack was still just 73% of normal. John Ryan