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BP……WHAT HAVE YOU DONE?  DeepWater Horizon Oil Spill Timeline  Deepwater Horizon  floating rig  exploratory drilling 50 miles southeast of Venice  water nearly 1 mile deep  only 40-50 rigs in Gulf drilling this deep  April 20, 2010 – explosion – methane gas  April 22, 2010 – rig topples, oil begins to leak from well in sea floor  Blow-out preventer failed  Three leaks, one has been sealed Current situation  As of ???????????? gallons of oil have been released into the gulf.  Exxon Valdez in 1989 was 11 million gallons  Attempted to place large “funnel” over leak on Saturday 5/8  Gas-water crystals clogged  Mitigation: booms, skimming, burning, dispersants (bad weather disrupts)  Oil started showing up on shore over the weekend What next for BP?  As of July 15 the leak has been capped.  Future ???????? $$$$$$ BIODEGRADATION OF OIL BY BACTERIA  BACTERIA AND MICROBES ARE THE ONLY THINGS THAT WILL ULTIMATELY CLEAN UP (NOT JUST MOVE AROUND) THE ONGOING OIL SPILL IN THE GULF OF MEXICO There are billions of hydrocarbon chewing microbes BACTERIA ARE ABLE TO MAKE THEIR OWN SURFACTANT ( reduces surface tension) Dispersants  Separates the oil into smaller droplets  Dispersed throughout the water column  Prevent surface slick – affects beaches, marshes, animals – immediate damage  Does not destroy or eliminate oil – dilutes and alters until natural degradation  Where does it go? – complex currents, water vs sediment  What does it do? – food chain, toxicity