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Saturday, July 14, 2012

Major oil spills.

1. Gulf War, 1991

Location: Kuwait
Gallons: 240 to 336 million

How It Happened:
As Iraqi forces retreated from Kuwait during the first Gulf War, they opened the valves of oil wells and pipelines in a bid to slow the onslaught of American troops. The result was the largest oil spill history has seen. Some 240 million gallons of crude oil flowed into the Persian Gulf. The resulting oil slick spanned an area just larger than the size of the island of Hawaii.

The Cleanup:
Coalition forces managed to seal off some of the open pipelines using smart bombs, but most recovery efforts had to wait until after the war. At that point 25 miles of booms (orange ropelike products that contain the oil that is floating on top of the water) and 21 skimmers (machines that separate oil from water) were deployed in the gulf, mostly to protect the water intakes of desalinization, industry and power plants. Together with vacuum trucks, about 58.8 million gallons of oil was recovered from the gulf.

The largest oil spill the world has seen exacted little permanent damage on coral ecosystems and local fisheries, according to a report by the Intergovernmental Oceanographic Commission at Unesco. The study concluded that about half the oil evaporated, one-eighth of it was recovered and another quarter washed ashore, mostly in Saudi Arabia.
 
2. The Torrey Canyon Oil Spill
When: March 18, 1967
Where: Scilly Isles, UK
Amount spilled: 25-36 million gallons
The Torrey Canyon was one of the first big supertankers, and it was also the source of one of the first major oil spills. Although the ship was originally built to carry 60,000 tons, it was enlarged to a 120,000-ton capacity, and that’s the amount the ship was carrying when it hit a reef off the coast of Cornwall.
The spill created an oil slick measuring 270 square miles, contaminating 180 miles of coastland. More than 15,000 sea birds and enormous numbers of aquatic animals were killed before the spill was finally contained.
Toxic solvent-based cleaning agents were used by Royal Navy vessels to try to disperse the oil, but that didn't work very well and instead caused a great deal of environmental damage. It was then decided to set fire to the ocean and burn away the oil by dropping bombs.
 
 

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