A total of 2,231 people have died out of 3,373 declared cases of Ebola in the current epidemic in the DR Congo, according to the agency overseeing the response, health officials said Sunday.Deadly unrest in the fragile state has hampered …

2019 was the year of Greta Thunberg, Extinction Rebellion and an uptick in climate action pledges by governments across the globe.    From Britain to Germany, Europe’s mainstream party leaders scrambled to respond to a surge in electoral support for …

Scientists are scrambling to understand why thousands of dead mussels are turning up in several rivers across the United States, including one of the world’s biodiversity hotspots. The rapid decline of the pheasant shell mussel in Appalachia’s Clinch River may be …