One-fifth of U.S. groundwater wells had at least one contaminant above federal standards for human health.
Water rises on the world agenda.
Rainfall is not a strong motivator of violence, but higher temperatures are.
An investigation begins this week as to whether spills of heavy oils pose a greater environmental threat than spills of other crude oils.
Water scarcity and extreme weather are two reasons that food prices will stay high, however.
Federal data show that U.S. farms use less water and are investing in water-saving irrigation equipment.
IPCC says the water cycle will intensify, leading to bigger storms, more droughts, and worsening water quality.
More of the same is not working in changed conditions of the 21st century.
If global warming increases vegetation in high mountain zones, less water might be available for rivers.
Algae toxins have been found in seven lakes, reservoirs, and rivers that supply drinking water to 1 million people.
Lack of testing requirements inhibits more thorough review of drinking water safety.
Current targets not enough to stop algal toxins.
Groundwater losses during historic drought equal one and a half times the volume of a full Lake Mead.
Record reductions in river flows will be offset by pumping more water from aquifers.
University of Michigan study provides online video scenarios of fast and expansive movement of oil in two Great Lakes.
Completed in 1935, Hoover Dam supplies electricity to 29 million people in Arizona, California and Nevada.
Along the 1,800-mile river basin,locals wrestle with water demands.
Pipelines and canals buy some cities a ticket out of water stress — for now.
Food prices set to climb as production of wheat and other staple crops is cut.
Report calls for new Himalayan development policy; stirs political battle in New Delhi.