The Exxon Valdez oil spill occurred in the Prince William Sound, Alaska, on March 24, 1989. It is considered one of the most devastating human-caused environmental disasters ever to occur at sea. As significant as the Exxon Valdez spill was, it ranks well down on the list of the world's largest oil spill in terms of volume released. However, Prince William Sound's remote location (accessible only by helicopter and boat) made government and industry response efforts difficult and severely taxed existing plans for response. The region was a habitat for salmon, sea otters, seals and seabirds. The vessel spilled 10.8 million U.S. gallons (about 40 million litres) of Prudhoe Bay crude oil into the sea, and the oil eventually covered 11,000 square miles (28,000 km2) of ocean.
(http://en.wikipedia.org/wiki/Exxon_Valdez_oil_spill)
That was really bad. Thousands of marine animals were killed, it was equivalent to an earthquake to us. Unlike the economic loss, the break in natural balance is more difficult to recover. So, I think that the people should be more conciderate to this nature. They should not transport oil when there were many icebergs on the sea, though it might cause some economic loss. If people are always so thoughtful about the environment when doing their job, the nature would not be so terrible now.
