The report of a UNEP/ILEC joint project has identified water-level fluctuation as one of the six major problems confronting the world’s lakes and reservoirs. The water level in which the sea has been rising rapidly in the recent years making it necessary to protect cities, railways, and roads from the rising water?

The Caspian Sea, the largest inland body of water in the world, has experienced rapidly rising water levels in recent years. This has created threats to coastal cities, railways, and infrastructure, requiring protective measures. The Black Sea, Mediterranean Sea, and Arabian Sea are not experiencing the same rapid level-rise phenomenon as the Caspian.