"In recent years, Pennsylvania regulators have tried to clamp down on roadway spreading of tens of millions of gallons of oil and gas “brines,” high-salt liquids that can be laced with toxic metals and radioactive material. The industry is pushing back."

"The Trump administration announced on Tuesday that it planned to relax a Biden-era rule that requires grocery stores, air-conditioning companies, semiconductor plants and others to sharply and rapidly reduce some powerful greenhouse gases used in cooling equipment."

"On Tuesday evening, with the federal government on the brink of a shutdown, Interior Secretary Doug Burgum took to social media to tout the agency’s deployment of autonomous lawnmowers on the National Mall and at several other National Park sites."

"Researchers across the United States and the world who raced to protect climate data, public reports and other information from the Trump administration’s budget cuts, firings and scrubbing of federal websites are launching their own climate information portals."

"Federal agents grabbed and shoved journalists in a hallway outside a New York City immigration court on Tuesday, sending one to the hospital in the latest clash between authorities enforcing President Donald Trump’s immigration crackdown and members of the public seeking to observe and document their actions."

"After nearly 40 years, the Arctic Research Consortium of the United States, or ARCUS, will close September 30, a casualty of President Donald Trump’s proposed budget cuts and his administration’s focus on using the Arctic as an outpost for national security and energy dominance — and its push away from science."

"The sugar industry and companies that make sweet drinks and foods have spent nearly a century downplaying sugar’s role in health problems and distorting the science around fluoride — and the practice continues today, according to a new study."

"The world’s biggest capital cities are now sweltering under 25% more extremely hot days each year than in the 1990s, an analysis has found. Without urgent action to protect millions of people from high temperatures, more and more will suffer in the dangerous conditions, analysts said."

"A project in western Alaska is being fast-tracked in a process that has not yet included legally required consultations with Inupiaq communities."

"Facing weakened pollution targets and threats of federal inaction, Maryland and Virginia may have to become the agreement’s enforcers."