The ship-to-ship transfer extracted as much of the 1.14 million barrels of oil as possible, leaving under 2% aboard.
Without U.N. intervention, the tanker could have released as much as four times the oil spilled by the Exxon Valdez in 1989.
If accomplished, the goals are significant because the industry accounts for 2.9% of global carbon emissions. Diesel powers most of the world's 100,000 cargo ships.
The stranded supertanker FSO Safer has been moored off the coast of Yemen – toward the end of a pipeline to the oil and gas fields near Marib city – and nearly sank in 2020.
The International Maritime Organization requires industry upgrades and streamlining electronic information exchanges.
A U.S.-North Korea summit could expand a little-known aspect of a tightly controlled and secretive nation: North Korea's extensive involvement with international organizations.