Health officials in Sudan say a cholera outbreak in a southern city has killed nearly 60 people and sickened about 1,300 ...

Can a river really flow uphill? It sounds impossible, but these 5 rivers defy expectations, appearing to move against gravity ...

Scientists warn that climate change is worsening water shortages. Water gaps could increase by 6% at 1.5°C warming and 15% at 3°C warming.