It would add enough water to the Volga to maintain—or lift—the level of the Caspian Sea. To its only outlet—the sky—the Caspian annually gives in evaporation about 410 billion cubic meters ...

One of Earth's most interesting natural features, the Caspian Sea is the largest inland body of water on the planet, defying conventional classifications to be both a sea and a lake. Situated ...

One study suggests that if current evaporation rates continue, the northern part of the Caspian Sea could disappear within 75 years. Compounding the effects of climate change are reduced river inflows ...