The Aral Sea, once the fourth-largest lake in the world, has shrunk dramatically due to the diversion of its feeder rivers for irrigation. This human-induced environmental catastrophe has led to desertification and severe health problems in the region. While the Caspian Sea has experienced fluctuations, and the Black Sea is a marginal sea with complex dynamics, the Aral Sea's shrinkage is a prime example of severe human impact on water bodies.