Air

"Thanks to unusually warm temperatures high above Antarctica this month, the ozone hole shrank to its smallest size on record, scientists reported Monday."

"When leaders from Exxon Mobil and BP gathered last month with other fossil-fuel executives to declare they were serious about climate change, they cited progress in curbing an energy-wasting practice called flaring — the intentional burning of natural gas as companies drill faster than pipelines can move the energy away. But in recent years, some of these same companies have significantly increased their flaring ... ."

"Transportation is the largest source of planet-warming greenhouse gases in the United States today and the bulk of those emissions come from driving in our cities and suburbs."

"After two days of deliberations, an unofficial panel of air quality experts has tentatively concluded that EPA's fine particulate matter standards need significant tightening. Though agency leaders may not pay heed to their findings, the panel members are optimistic that federal judges will listen."

"California's top air regulator accused EPA Administrator Andrew Wheeler of twisting facts for political purposes in a letter sent yesterday."

"What was billed as an extraordinary event launched this morning [Thursday] in the most mundane of surroundings: a neutral-toned conference room that featured scientific researchers seated around a makeshift table."

"A reproducing population of brook trout has been discovered in a tiny lake in the Adirondack High Peaks Wilderness for the first time since the lake was declared fishless because of acid rain 32 years ago, New York state officials said."

"The White House refused to meet with two groups of air pollution regulators regarding its rollback of clean car standards, despite holding several meetings with industry advocates."

"A panel of appeals court judges scrapped a Trump-era rule yesterday that it said did not set strong enough restrictions on downwind states' exposure to smog-forming air pollutants produced by upwind neighbors."

"A coalition of New England and mid-Atlantic states on Tuesday took a first step toward limiting transportation emissions across 13 states."