South-west USA water problem
- Created by: jugohude
- Created on: 16-04-19 15:08
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- water problem USA
- causes
- high water usage
- 3.5M hectares irrigated land
- high population in cities
- 80% agriculture yet < 1/10 of state economy
- low rain fall
- 25% country's mean
- imbalance in distribution
- 70% runoff originates in northern 1/3 of state but 80% demand in south
- arizona taking too much from aquifer
- high water usage
- Colorado river
- 2333km long
- drains 632000km2
- over 30M people depend on it
- hoover dam and lake mead
- not enough water as California taking too much
- 2333km long
- resource management
- reduce leaks and evaporation
- recycle water in industry
- more efficient toilet systems
- charging more realistic prices for irrigation
- use less water dependent crops
- future options
- new ground water resources
- cloud seeding
- antarctic ice
- off shore aquaducts
- causes
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