Marin County cut urban water use from 170 to 143 gallons a head between 1987 and 1998 by a plan involving staggered water rates.

ECONOMIST: California's economy

That's roughly one-third of urban water use, a fairly ambitious goal.

FORBES: Magazine Article

The imagery has been used to monitor urban growth, water use, farm production and a variety of natural disasters, from the 1980 eruption of Mount St.

CNN: NASA cheers new Landsat launch

The film highlights key water quality problems such as lack of access to safe water and sanitation, inefficient wastewater management in urban areas, water pollution caused by intensive use of nutrients and chemicals in agriculture, the invisible threat of new and emerging pollutants in water and the economic costs of water quality degradation.

UNESCO: MEDIA SERVICES