Scientists already have reported finding what they called a 1,235-square-mile “bathtub ring” of oil on the floor of the Gulf of Mexico left over from the huge 2010 BP oil spill. Now it appears this ring is part of a washroom set: A different team of scientists has found that up 10 million gallons of oil have created what can only be called a “bath mat” beneath the sediment of the gulf’s floor.
First the ring. David Valentine and colleagues from the University of California at Santa Barbara wrote in the Proceedings of the National Academy of Sciences in October 2014 that about 10 million gallons of the spilled oil settled on the gulf’s floor. Its size: about the size of the state of Rhode Island.
But what about the rest? As much as 200 million gallons of oil were spilled after the Deepwater Horizon oil rig, owned by BP…
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