The pressure on South African mining companies to dig deeper for remaining gold ore deposits may further endanger miners in an industry where accidents are commonplace.
A new lava study adds evidence for the controversial theory that volcanic climate change, and not simply a giant asteroid impact, killed the dinosaurs.
Floods in southeastern Mexico have left thousands in serious need of food and water. Authorities are worried about the possible spread of waterborne disease.
Indonesia's deadly Mount Kelud is spewing smoke, and scientists warn an eruption may be imminent. Still, many residents are reluctant to evacuate the area.
A new population of reclusive De Brazza's monkeys, a species thought to be near extinction in eastern Africa, has been discovered in Kenya, a scientist has reported.
Mexico's leader called flooding in Tabasco state "one of the worst natural disasters in the history of the country." Officials now fear waterborne disease.
Self-cleaning toilets and a 14-year-old inventor are part of this annual summit in India to address sanitation problems for 2.6 billion people without toilets.