Water Shortage in U.S
Drought
In 1999, drought in the Western states
Worst drought in 500 years
Water reservoirs in Colorado River dropped to 50%.
Water shortage
25 million people in 7 states didn't have water
inspired water-saving toilets and washing machines
In Denver, water consumption rates lowest in 30 years
Water Pollution
Air Pollution :
Global Warming
Over population
Water Pollution (2)
threats come from many sources.
air pollution magnifies Earth's natural green house effect
Burning fossil fuels, such as coal and oil.
Explosive population growth around Atlanta, Georgia.
Water pollution threats include animal manure and chemicals, for instance, underground gasoline has been leaking into groundwater in 49 states.
nitrogen and phosphorus found in fertilizers and factory pollution, Mississippi river.
Makes air pollution
increase in Earth temperture
U.S. autos produce 8.2 million tons of nitrogen oxide a year.
California's Sierra Nevada, winter precipitation that snow now falls as rain
Makes acid rain.
The pollution deprive fish of oxygen.
the snow used to melt gradually, delivering water to thirsty Californias in summer
7000 square miles dead around the river mouth.
pollution comes from many sources
instead of delivering water during near-rainless summer, the water runs into waterways at once leaving less for the dry months
factory pollution wash in into the Mississippi River and it will kill animals in the river
pollutants deprive fish of oxygen
less and less water that Californias is getting
7000 square mile ''dead zone'' around the rivers mouth
pollute the land
slowly kills plants and fish
Atlanta, Georgia is outstripping the water supply in the Southeast.
leaking MTBE into groundwater in 49 states, MTBE makes gasoline burn cleaner, but it can cause cancer when consumed
Alabama and Florida argue the extra water removal will leave them high and dry.
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