The Aral Sea is a lake that is situated between the former Soviet republics of Kazakhstan and Uzbekistan.
The Aral Sea was one of the largest lakes in the World. Due to the diversion of rivers that provided water to the lake as a source of water for agriculture the size of the lake rapidly reduced during the Soviet era. Further damage was caused by the heavy use of fertilizers and pesticides in agriculture around the lake that led to a large amount of chemicals leaching into the lake's water and making it unfit for use by animals. The environmental damage on the lake divided it into 4 small portions two of which have disappeared and the two left can be compared to small and shallow pools of highly polluted water.