Four countries are considering a plan to lay the world’s longest undersea power line between wind farms in the Caspian Sea ...

BP plans to explore for new oil fields in the Azeri Caspian Sea, BP's upstream chief Gordon Birrell told Reuters.

Iran is increasingly interested in investing in infrastructure for a north-south economic corridor that would link the Caspian Sea ... of the two countries’ road maps,” the report said.

Since 2006, the sea has become almost two meters shallower, and by the end of the century, it is predicted to fall by another 8–18 meters.