They used satellite data concentrating on Greenland's coastline to examine how fast the thinning is happening, and they have found that the flow-speed of 12 glaciers, which together account for about half the discharge of water from the ice sheet, is increasing and fast.

ECONOMIST: Climate change (II)

Groundwater is polluted due to poor land practices, atmospheric deposition of pollutants and direct discharge of sewage into water bodies.

FORBES: Emerging Asia Hits a Wall of Water

Montana's Department of Environmental Quality and the U.S. Environmental Protection Agency are in negotiations with Blixseth over alleged violations of the Clean Water Act, including the discharge of waste without a permit and the deposit of fill material in wetlands.

FORBES: Private Powder

As it is, the food we export to China consumes around 41 trillion liters of water each year, or twice the discharge of the Colorado River, BCG says.

FORBES: How China Will Eat Your Lunch

The permits cover the discharge and disposal of radioactive waste and cooling water.

BBC: Hinkley Point C nuclear emissions 'underestimated'

The Environment Agency permits cover the discharge and disposal of radioactive waste and cooling water and running of standby generators.

BBC: Environmental permits granted for Hinkley Point station

The Japanese government alarmed neighboring countries in April last year when it approved the discharge of 10, 000 tons of low-level radioactive water from the plant as Tepco ran out of space to store the water used to cool reactors.

WSJ: New Leak at Japan Reactor Threatens Ocean

Heavy rain can overwhelm the drains, forcing Thames Water, the firm that runs the network, to discharge a mix of rainwater and sewage directly into the Thames.

ECONOMIST: The capital's overflowing drains are due for a big upgrade

New technology might be able to halve the amount of water again, says Mike Fatigati, vice president of Delta-T Corp, a Virginia company which has designed a system that does not discharge any waste water.

ECONOMIST: New reasons to be suspicious of ethanol