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Looking for the oil? NOAA says it’s mostly gone
WASHINGTON (AP) - With a startling report that some researchers call more spin than science, the government said Wednesday that the mess made by the BP oil spill in the Gulf of Mexico is mostly gone already.
Out of sight, though, doesn’t mean out of danger, nor is the Gulf now clean. The harmful effects of the summer of the spill can continue on for years even with oil at the microscopic level, a top federal scientist warned.
U.S. officials announced that nearly 70 percent of the spilled oil dissolved naturally, or was burned, skimmed, dispersed or captured, with almost nothing left to see _ at least on top of the water. That declaration came on the same day they trumpeted success in plugging up the leaking well with drilling mud,
The National Oceanic and Atmospheric Administration and the U.S. Geological Survey announced in the five-page report that only 52.7 million gallons of oil are left in the Gulf. That is about 31 percent of the 172 million gallons that spewed into the water from the broken BP well.
What’s left in the water is still almost five times the amount spilled by the Exxon Valdez in 1989.
Nevertheless, Wednesday was a day of cautious celebration by a White House that has had little to cheer about from the oil spill.
“I think it is fairly safe to say … that many of the doomsday scenarios that we talked about and repeated a lot have not and will not come to fruition,” White House spokesman Robert Gibbs said at a briefing with NOAA’s top scientist.
Much of the reasoning behind the disappearing oil has to do with the natural resilience of the Gulf, which is teeming with microbes that eat oil. On top of that is the natural tendency of oil in seawater to evaporate and dissolve to half its volume in about a week _ something even critics acknowledge.
The federal calculations are based on direct measurements for only 18 million gallons of the oil spilled _ the stuff burned and skimmed. The other numbers are “educated scientific guesses,” said NOAA emergency response senior scientist Bill Lehr, an author of the report. That is because it is impossible to measure oil that is dispersed, he said.
That’s what worries some outside scientists.
“This is a shaky report. The more I read it, the less satisfied I am with the thoroughness of the presentation,” Florida State University oceanography professor Ian MacDonald told The Associated Press. “There are sweeping assumptions here.”
NOAA chief Jane Lubchenco acknowledged the numbers could be off by as much as 10 percent. One of the scientists who peer-reviewed the work and is mentioned in the report, Ed Overton of Louisiana State University, said he wasn’t comfortable with NOAA’s putting precise percentages of how much oil is left in the Gulf. What would be more accurate would be a much broader range of, say, 40 million to 60 million gallons, he said.
Still, Overton thought the report was mostly good work. He said the Gulf itself deserves much of the credit, describing the body of water in two words: “incredibly resilient.”
The White House claimed only 26 percent of the oil remained in the Gulf, but that was based on a 206-million-gallon figure for the spill that included oil that spewed from the pipe but was captured by BP and never got into the Gulf. Using the 172 million gallons that got into the Gulf, 31 percent of the oil remains.
So what happened to the oil?
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