New England Aquarium, Associated Press
ST. AUGUSTINE BEACH, Fla. — The Obama administration is reopening the Eastern Seaboard to offshore oil and gas exploration, announcing final approval Friday of sonic cannons that can pinpoint energy deposits deep beneath the ocean floor.
The decision promises to create plenty of jobs and thrills the oil industry, but dismays environmentalists worried about the immediate impact as well as the long-term implications of oil development.
The cannons fill waters shared by whales and turtles with sound waves 100 times louder than a jet engine. Saving endangered species was the environmental groups' best hope of extending a ban against offshore drilling off the U.S. Atlantic coast.
The U.S. Bureau of Ocean Energy Management disclosed its final approval first to The Associated Press ahead of an announcement later Friday.
The approval opens the outer continental shelf from Delaware to Florida to exploration by energy companies preparing to apply for drilling leases in 2018, when current congressional limits are set to expire. The bureau is moving ahead despite acknowledging that thousands of sea creatures will be harmed.
"The bureau's decision reflects a carefully analyzed and balanced approach that will allow us to increase our understanding of potential offshore resources while protecting the human, marine, and coastal environments," acting BOEM Director Walter Cruickshank said in a statement.
These sonic cannons are already in use in the western Gulf of Mexico, off Alaska and other offshore oil operations around the world. They are towed behind boats, sending strong pulses of sound into the ocean every 10 seconds or so. The pulses reverberate beneath the sea floor and bounce back to the surface, where they are measured by hydrophones. Computers then translate the data into high resolution, three-dimensional images.
"It's like a sonogram of the Earth," said Andy Radford, a petroleum engineer at the American Petroleum Institute, an oil and gas trade association in Washington DC. "You can't see the oil and gas, but you can see the structures in the earth that might hold oil and gas."
The surveys can have other benefits, including mapping habitats for marine life, identifying solid undersea flooring for wind energy turbines, and locating spots where sand can be collected for beach restoration. But fossil fuel mostly funds this research, which produces data held as energy company secrets and disclosed only to the government.
"They paid for it, so I can see why they don't want to share. These things are not cheap," said John Jaeger, a University of Florida geology professor.
The bureau estimates that 4.72 billion barrels of recoverable oil and 37.51 trillion cubic feet of recoverable natural gas lies beneath federal waters from Florida to Maine. Oil lobbyists say drilling for it could generate $195 billion in investment and spending between 2017 and 2035, creating thousands of jobs and contributing $23.5 billion per year to the economy.
These estimates describe the total amount of energy "technically recoverable" from the outer continental shelf, which includes the seabed off New Jersey, New York and New England. But the north Atlantic zone remains off limits for now, apparently for political reasons. While some states have passed drilling bans, Virginia and the Carolinas requested the seismic surveys in an effort to grow their economies, bureau officials said Friday.
In any case, the area to be mapped is farther offshore in federal waters, beyond the reach of state law.
The sonic cannons are often fired continually for weeks or months, and multiple mapping projects may operate simultaneously. To get permits, companies will need to have whale-spotting observers onboard and do undersea acoustic tests to avoid nearby species. Certain habitats will be closed during birthing or feeding seasons.
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