"One morning in late June, after a crisp mountain air had settled into Kootenai River valley, Megan Leach heard her chickens clucking nervously. She ventured outside to see the cause for the commotion and noticed that one of her heavy coops, on wheels but sturdy, had been moved. As dusk began to fall later that day, Leach rounded up her chickens to place them in the protection of her barn, feeling that something was watching them. It turned out to be a grizzly bear."

"Acrid smoke from stubborn swamp fires burning south and east of New Orleans combined Monday with dense fog to create the “superfog” that contributed to one of the deadliest highway pileups in memory."

"A company on Friday said it would cancel its plans for a 1,300-mile (2,092-kilometer) pipeline across five Midwestern states that would have gathered carbon dioxide emissions from ethanol plants and buried the gas deep underground."

"More than 80% of ships are speeding through "go slow" zones set by environmental regulators along the U.S. East Coast to protect endangered North Atlantic Right Whales, according to a report released on Thursday by environmental group Oceana."

"The U.S Environmental Protection Agency on Wednesday issued a final determination declaring that emissions from aircraft that use leaded fuel pose a danger to public health, following years of study."

"A road critical to operating a proposed open-pit mine in a remote part of Alaska hit a new hurdle Friday when the Biden administration issued a finding that the road could threaten Alaska Native communities and their lifestyle more than previously estimated."

"Rising ocean temperatures and marine heat waves are pushing whales closer to busy shipping lanes. Flexible speed reduction areas could help prevent ship collisions, scientists say."

"Cities all over the country are beginning to transition their school bus fleets to electric — a boon for the climate, and for students’ health."

"Well over a century after the Age of Sail gave way to coal- and oil-burning ships, climate change concerns are prompting a new look at an old technology that could once again harness wind to propel commercial cargo ships — this time with the goal of reducing greenhouse gas emissions."