Levantine Sea to be the oldest known ocean crust worldwide. The Suez Canal was completed in 1869, linking the Levantine Sea to the Red Sea. The Red Sea's level is higher than the Eastern Mediterranean, so the canal serves as a tidal strait that pours Red Sea water into the Mediterranean. The Bitter Lakes, which are hypersaline natural lakes that form part of the canal, blocked the migration of Red Sea species into the Mediterranean for many decades, but as the salinity of the lakes gradually equalized with that of the Red Sea, the barrier to migration was removed, and plants and
Red Sea–Dead Sea Water Conveyance flow to about 100 million cubic metres a year (MCM/yr) (mainly brackish water and sewage). The decline of the Dead Sea level is creating major environmental problems, including sink holes and receding sea shores. Other routes for a conduit for the same objectives as the Red - Dead Conduit, the Mediterranean–Dead Sea Canal, were proposed in Israel in the 1980s, but were discarded. The project costs $10 billion in all of its phases, with the first phase, which is slated to begin construction in 2021, will cost $1.1 billion. The Jordanian government is currently in the process of shortlisting consortiums