Less than a half-ounce of red meat per day: That's how much a new report says we should eat to meet nutritional needs and help save the planet. Americans on average now eat four to six times as much.
As temperatures break records, Australians are suffering from heat-related illnesses, power has been cut to preserve supplies, and more than 90 horses were found dead in a dried reservoir.
16-year-old Greta Thunberg has been the inspiration for many of the protests. She has staged weekly protests on the steps of the Swedish Parliament and spoke this week at Davos.
Florida's panhandle took the brunt of Hurricane Michael three months ago. Small, beachside communities are just beginning to grapple with the costs and challenges of recovery.
The utility company is trying to convince a federal judge to modify a wide-ranging proposal to mitigate wildfire risk. PG&E is also seeking bankruptcy protection.
Thousands of coal miners across Appalachia are grappling with complicated black lung, a disease that has drastically changed their lives, their communities and their families.
A fungal disease called white-nose syndrome has killed millions of North American cave-dwelling bats over the past decade. Now, scientists are field testing some promising treatments.