"As government works to save big cats from extinction, indigenous forest dwellers pursue peaceful coexistence for man and beast".

"Beneath the streets of Boston, two robots named Mario and Luigi inspect the flow of human waste, collecting data on city residents."

"Times are tough for Chesapeake oysters. For one thing, they used to be bigger. "If you look at what people were saying back in the 1600s and 1700s about oysters, people had to cut them in half before they could even eat them," says Denise Breitburg, an ecologist with the Smithsonian Environmental Research Center."

"There was a time when Sandra Gologergen's freezer never ran out. Packed with traditional Inuit foods like whale, walrus, seal and fish, her freezer has been an essential lifeline, ensuring her husband, three kids and grandson make it through the long harsh winters of Savoonga, Alaska. 'Then that changed,' she says."

"Democrats will highlight the Flint, Mich., water crisis during the third night of the Democratic National Convention on Wednesday."

"Multi-ethnic nations are vulnerable to armed conflicts after weather disasters such as heatwaves and droughts in a trend that could worsen with global warming, scientists said on Monday."

"GRASSY NARROWS FIRST NATION—For more than 40 years the mercury has percolated through river sediment, the food chain and generations of residents."

"The fate of a mysterious hummingbird — and that of the indigenous population that shares its territory — hangs by a thread."

"As 2016 predicted to be the hottest year on record, African Methodist Episcopal Church leaders are taking a stand against climate change and urging their congregations and communities to do the same."

"The level of mercury found in the umbilical cords of babies in Grassy Narrows First Nation was high enough to affect their brain development, according to a new report obtained by the Star."