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4 Cards in this Set

  • Front
  • Back

Challenges facing water resources

Water pollution


Overuse and misuse of water resources


Over pumping and mining water pollution

Water pollution

Industry waste


Run offs from waste carry bacteria and parasites


Run offs from crops carries excess fertilizer triggers algae blooms

The Aral Sea

Fourth largest freshwater lake


Located in modern Kazakhstan


Soviet irrigation diverted water from sea for cotton farming


Reduced to 4 small lakes


Environmental disasters such as: complete destruction of fishing and shipping industry


Salinity levels higher than those of the ocean


Growth of a new salt pan desert on the floor of the old sea


Dust storms


Critical habitat lost and microclimate destruction

Ogallala aquifer

Formed 2-6 million years ago


Filled with fossil water from cooler climate



Degradation of certain environments has reduced recharge further



Pumping has dropped water tables in some areas