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Because Trump is unlikely to approve them, California officials say they had no choice but to abandon the state's groundbreaking rules for zero-emission trucks and cleaner locomotives.

The Seventh Oregon Climate Assessment from state and federal scientists and researchers evaluates the what the future could look like based on increasingly precise forecasts.

One of the world’s largest commercial truck manufacturers is refusing to sell its diesel big rigs in Oregon, even though its North America headquarters is in Portland.

Some Northern California cities have been soaked with almost twice their average rainfall, while southern cities are bone-dry. This season’s huge — possibly unprecedented — disparity works in favor of the state’s water supplies.

Two sea turtles washed up along Oregon’s beaches in the final days of 2024 due to hypothermic shock, bringing the number of sea turtles that appeared on the state’s shores last year to 17.

Oregon will soon have more than 200 federally-funded electric school buses shuttling kids to and from school following an announcement that the state will get money for more early next year.

The US EPA granted California’s waiver, which the incoming Trump administration is likely to try to overturn in the courts. The state’s zero-emission vehicle mandates have been the driving force behind California’s progress in cleaning up dangerous air pollutants.

The Supreme Court justices agreed to review whether oil companies have standing to try to overturn a federal waiver for a California clean-car rule that ramped up electric car sales. The standards are the cornerstone of California’s efforts to clean its air and combat climate change.

Oregon environmental regulators have approved rules that will temporarily delay the state’s efforts to reduce carbon emissions from medium- and heavy-duty trucks, which are typically used for commercial purposes and for long-haul transportation.

On Thursday, the Oregon Department of Environmental Quality’s commission voted unanimously to adopt a revamped version of the Climate Protection Program. Its main goal is to reduce 90% of carbon emissions from diesel, gasoline and natural gas companies by 2050.

Trump’s promise to block the offshore wind industry could threaten CA’s renewable energy goals, potentially cutting off federal funding.

The Oregon Department of State Lands signed an agreement Thursday with the company Anew Climate to put the first state forest in the West into a carbon market.