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The final choice to end the leak is a relief well, but it is more than two months from completion. Top officials in President Barack Obama's administration cautioned that the tube "is not a solution." "We will not rest until BP permanently seals the wellhead, the spill is cleaned up, and the communities and natural resources of the Gulf Coast are restored and made whole," Secretary of Homeland Security Janet Napolitano and Secretary of the Interior Ken Salazar said in a joint statement. Meanwhile, scientists warned of the effects of the oil that has already leaked into the Gulf. Researchers said miles-long underwater plumes of oil discovered in recent days could poison and suffocate sea life across the food chain, with damage that could endure for a decade or more. Researchers have found more underwater plumes of oil than they can count from the well, said Samantha Joye, a professor of marine sciences at the University of Georgia. The hazards of the plume are twofold. Joye said the oil itself can prove toxic to fish, while vast amounts of oxygen are also being sucked from the water by microbes that eat oil. Dispersants used to fight the oil are also food for the microbes, speeding up the oxygen depletion. "So, first you have oily water that may be toxic to certain organisms and also the oxygen issue, so there are two problems here," said Joye, who's working with the scientists who discovered the plumes in a recent boat expedition. "This can interrupt the food chain at the lowest level, and will trickle up and certainly impact organisms higher. Whales, dolphins and tuna all depend on lower depths to survive." Oil has been spewing since the rig Deepwater Horizon exploded April 20, killing 11 people and sinking two days later. The government shortly afterward estimated the spill at 210,000 gallons a day, a figure that has since been questioned by some scientists who fear it could be far more. BP executives have stood by the estimate while acknowledging there's no way to know for sure. Steve Shepard, who chairs the Gulf Coast group of the Sierra Club in Mississippi, said the solution by BP to siphon some of the oil is "hopefully the beginning of the end of this leak." He, like others, is worried that much more than the estimate is leaking and that the long-term damage is hard to measure. "We have a lot to be worried about," he said. "We are in uncharted territory."
[Associated
Press;
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