"Federal judges appeared torn on Friday over the legality of the Trump administration’s effort to reopen millions of acres of Arctic waters for oil and gas development."

"Levels of carbon dioxide in the atmosphere reached their annual peak last month, and once again were the highest in human history. Despite the economic collapse resulting from the coronavirus pandemic, which has led to sharp declines in carbon dioxide emissions, the amount of the greenhouse gas has continued to climb."

"A key measure of carbon dioxide emissions in the Earth’s atmosphere hit a record in May even as a global pandemic brought the world’s economies to a virtual standstill this year, according to U.S. government data published on Thursday."

"Conservation groups want a Montana court to cancel the approval of a long-disputed copper mine that they say would pollute a tributary of one of the state’s most popular recreational rivers."

"Large territories of rivers, streams and tundra lands are covered by more than 20 thousands tons of diesel oil from a reservoir owned by company Nornickel. The catastrophe was reported to the authorities only two days after the spill and nobody really knows how to clean up."

"A federal judge has denied a request by coal companies owned by the family of West Virginia Gov. Jim Justice to dismiss a lawsuit over selenium violations at a southern West Virginia coal mine."

"The Trump administration, in twin actions to curb environmental regulations, moved on Thursday to temporarily speed the construction of energy projects and to permanently weaken federal authority to issue stringent clean air and climate change rules."

"Mayor Jim Kenney kicked off a recent briefing on Philadelphia’s coronavirus response with an unusual request for residents: Be careful what you flush."

"A federal judge has ordered President Donald Trump's administration to update its oil spill response plans and potentially limit the use of the chemical dispersants that were heavily used during the BP Deepwater Horizon oil disaster."

"From Washington to Los Angeles, the scene has become eerily mundane in the last week: The soft thud of a tear gas canister landing on pavement, followed by a billow of white smoke enveloping a throng of fleeing demonstrators."