A growing environmental disaster

Engineers launched another dramatic bid to cap the gushing oil spill in the Gulf of Mexico, as the slick extended across 150 miles of water in what may become the nation’s worst spill, surpassing the Exxon Valdez disaster.

What happened

Engineers launched another dramatic bid to cap the gushing oil spill in the Gulf of Mexico this week, as the slick extended across 150 miles of water, threatening coastal towns and leaving a thick, gooey coating of petroleum on oyster beds, rookeries, and the environmentally sensitive marshes of the Mississippi Delta. As The Week went to press, BP was attempting to stop the flow of oil with a “top kill” procedure, forcing a dense solution of clay minerals and water known as “drilling mud” into the well and then topping it with concrete. BP said it could not be sure that top kill would work, because of the unprecedented challenge of deploying robots to cap a narrow, gushing pipe under severe water pressure a mile below the surface. “It’s like trying to do an operation on the moon,” said Thomas Bickel, deputy chief engineer at Sandia National Laboratories.

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