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Hoover dam - U.S.A
Colorado river
Opened in 1936
Cost $49 million
Created lake mead - 180km reservoir
Supplies water to 8 million people
Lake is runniny out of water
2020 - could fall below useable levels
Sahel
Climate has natural wet and dry seasons
Cyclical droughts
Rainfall is high intensity
2006 - torrential rain affected 1000s people
Past 3 decades - chronic food and water shortages
Dhaka - Bangladesh
Slum community
No safe water / toilets
Help from organisation - prodiplan
6 deep tube wells
People are no longer continually ill
People run facilities themselves
Project helped move people out of poverty
Three Gorges Dam
$26 billion
Completed in 2012
175m concrete dam
Reservoir 600km long
34 hydro electric generators
632km2 of land inundated
1.3 people relocated
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