The UN has initiated a complex operation to prevent a massive oil spill in the Red Sea, off the coast of Yemen. With the arrival of its ship, the Nautica, the transfer of crude oil currently stored in the dilapidated tanker, the SFO Safer, can begin. The operation is considered extremely "delicate" due to the presence of marine mines off the coast of Hodeida. FRANCE 24's Science Editor Julia Sieger tells us more.