For those who were annoyed by the inconsistent units in the story:<p>"International Tanker Owners Pollution Federation reporting about 7000 tonnes of crude oil spilling from tankers into oceans in 2017 alone."<p>".. explosion on the Deepwater Horizon offshore drilling rig on 20 April 2010 and subsequent release of approximately 4.9 million barrels of crude oil into the Gulf of Mexico."<p>According to this site (<a href="https://www.reference.com/science/much-barrel-oil-weigh-b29eeb18d34510ef" rel="nofollow">https://www.reference.com/science/much-barrel-oil-weigh-b29e...</a>) "In order to get a metric tonne of oil, one would need about 7.33 barrels of oil."<p>7000 tonnes ~ 51,310 barrels<p>4.9 million barrels ~ 668,485 tonnes
Hopefully the Chinese gutter-oil industry[1] will start selling to this purpose, instead of as cooking oil!<p>[1] <a href="https://en.wikipedia.org/wiki/Gutter_oil" rel="nofollow">https://en.wikipedia.org/wiki/Gutter_oil</a> - while recycling oil from deep fryers might not sound awful, some gutter oil is literally taken from the gutter - sewage is being recycled and sold as cooking oil in parts of China!