A new study estimates that a staggering four billion people experience water shortage for at least one month out of the year. This is far more than previously thought, researchers say.
Climate change, land use and population growth are threatening the availability of water sources in the Himalaya Mountain basins.
Hidden under Greenland’s ice sheet is an intricate natural "plumbing system" that regularly drains subglacial lakes, impacting ice sheet flow and sea level rise.
It turns out that even weeks, months, and years after an earthquake, an area can have an increased chance of landslides following the additional shake-up of heavy rain. The earthquake caused the slide, though.