Yellowstone National Park is rising more than three times faster than has ever been measured, thanks to growing pressure from the ancient volcano on which the park sits.
Global warming may be to blame for Australia's unprecedented seven-year drought, which has become so severe that farms are disappearing as rapidly as rivers.
Florida's red tide blooms are fed by wind-driven nutrients from the Mississippi River, scientists say. The finding may help in forecasting bloom flare-ups.
Almost a century after a mysterious explosion flattened a huge swath of Siberian forest, scientists say they have found a crater made by the cosmic object that created the blast.
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.