ABSTRACT
If only there was an easy, unequivocal answer to that question. In June 2010, the U.S. Geological Survey calculated that as much as 50,000 barrels, or 2.1 million gallons of oil a day, were flowing into the Gulf of Mexico out of the well left over from a sunken oil platform. The Deepwater Horizon oil rig exploded in April 2010, then sank to the bottom of the sea while killing 11 people. It triggered a spill that lasted for months as its severed riser pipe kept spewing oil deep into the sea.
