A federal judge in Montana has ordered the Trump administration to release documents it relied on to approve construction of the Keystone XL pipeline last year.
Two Interior scientists quit after Secretary Ryan Zinke demanded that they provide his office with confidential data on the National Petroleum Reserve-Alaska before it was released to the general public.
An Idaho Senate panel voted to retain all references to man-made climate change in proposed science standards for K-12 education, which could end a three-year fight over the rules.
Due to heavy fertilizer use, California's Central Valley is behind up to 41 percent of the state's emissions of nitrogen oxide—an air pollutant and climate-warming gas
Silencing Science Tracker "tracks government attempts to restrict or prohibit scientific research, education or discussion, or the publication or use of scientific information"