The Exxon Valdez was an oil tanker that ran aground at the Alaska coast. The oil it spilled caused a large environmental disaster.

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  Exxon Valdez
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  The cleanup effort
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  Oil price chronology around the time of the spill
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  The cleanup effort
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  Sheen in the Valdez water
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  Birds killed as a result of oil from the Exxon Valdez spill. Photo courtesy of the Exxon Valdez Oil Spill Trustee Council.