For years, more than a million barrels of crude oil have been sitting on a decaying supertanker in the Red Sea. marks the beginning of the operational phase of the plan to safely remove the oil and avoid the risk of an environmental and humanitarian disaster," Achim Steiner from the UN Development Programme (UNDP) said, adding that it was a "major breakthrough". The ensuing conflict has reportedly killed more than 150,000 people and left more than 23 million in need of aid