"Guardians of ancient Canadian cedars are divided over the future of logging on their windswept island outpost"

"In the San Bernardino Mountains, another wildfire has forced residents to flee, the latest reminder that they must accept the risks of climate change if they want to remain."

"How schools, hospitals, prisons and other institutions in 15 states profit from land and resources on 79 tribal nations."

"Researchers have found several promising ways to thwart the fungus, which causes the deadly white-nose syndrome in bats."

"The Vaux's Swift is a tiny bird – some people call it “a cigar with wings.” But every fall these little birds make a big trip, from summer breeding grounds in the Pacific Northwest down to their winter home in Central and South America. Along the way, many of them roost as a big flock in chimneys up and down the west coast. And their murmurations in the air – and simultaneously dive together into chimneys – are so spectacular that they draw crowds."

"Officials warned people to stay out of the ocean at several beaches in Maryland, Delaware and Virginia after they said medical waste, including hypodermic needles, washed ashore. The source of the waste was under investigation."

"A tiny, vibrant world thrives along the rocky bottom of most streams. As sunlight filters through the water, mayfly nymphs, no larger than your fingernail, cling to algae-coated cobbles. Six spindly legs anchor them against the current, while feathery gills wave gently, drawing oxygen from the flowing water."

"Rust-colored piles of mine waste and sun-bleached wooden derricks loom above the historic Colorado mountain town of Leadville — a legacy of gold and silver mines polluting the Arkansas River basin more than a century after the city’s boom days."

"Abnormally dry conditions have caused low water levels that disrupt barge transports carrying fuel and grain. Climatologists say it could be part of a larger trend."