"Mammals in the ocean swim through a world of sound. But in recent decades, humans have been cranking up the volume, blasting waters with noise from shipping, oil and gas exploration and military operations. New research suggests that such anthropogenic noise may make it harder for dolphins to communicate and work together."

"Bison once numbered in the tens of millions in the United States. Now, a nonprofit is working to restore the shortgrass prairie, where the American icons and their ecosystem can thrive again."

"After recovering from Saddam Hussein’s campaign to drain them, Iraq’s Mesopotamian Marshes are disappearing as a regional drought enters its fourth year and upstream dams cut off water flows. Marsh Arabs, resident for millennia, are leaving, and biodiversity is collapsing."

"A draft update of the state’s $50 billion coastal master plan predicts that 61 new projects to build or protect land, a dozen new levees, and new efforts to elevate, flood-proof or relocate flood-prone homes will reduce annual hurricane storm surge damages by at least $11 billion per year by 2073."

"The global loss of pollinators is already causing about 500,000 early deaths a year by reducing the supply of healthy foods, a study has estimated."

"Salt marshes, excellent reservoirs of carbon, are living ecosystems with vegetation and microscopic organisms that live, breathe, poop and die in the marsh mud."

"The National Park Service is moving to prohibit hunters on some public lands in Alaska from baiting black bears with doughnuts and using spotlights to shoot hibernating bears and cubs in their dens, techniques allowed by the Trump administration but considered inhumane by conservationists."

"Researchers along the Atlantic Ocean say there have been nine North Atlantic right whale calves spotted this season, a positive sign for the aquatic giant described as one of the “most endangered whales.”"