The oil gushing from the well where the Deepwater Horizon oil rig exploded and sank is now spreading through the Gulf of Mexico. Oil spills can kill wildlife, pollute the air and water, and alter the ecosystem for years to come. Many of us think of the Exxon Valdez oil spill as a particularly bad one, but with about 42,800 tons of oil spilled, it doesn't rank as one of the 10 worst ever.
Here are some of the worst oil spills in history:
10. The Odyssey: 132,000 tons
In November 1988, the American-owned oil tanker Odyssey split in two 700 miles off the coast of Nova Scotia. The tanker spewed about 132,000 tons of crude oil into the sea and caught fire as it sank, setting the spill aflame. Because of hazardous weather conditions, the Canadian Coast Guard could not immediately reach the spill, and much of the oil burned.
