Exxon Valdez oil spill After 20 years, there is no evidence suggesting that either cleanup workers or the residents of the communities affected by the Valdez spill have had any adverse health effects as a result of the spill or its cleanup. In 1992, Exxon released a video titled "Scientists and the Alaska Oil Spill", to be distributed to schools. Dr. Michael Fry called it a piece of "corporate propaganda". In December 1994, the Unabomber assassinated Burson-Marsteller executive Thomas Mosser, accusing him of having "helped Exxon clean up its public image after the "Exxon Valdez" incident". The PR company claimed not to have been
Ship modern oil tankers must be considered something of a threat to the environment. An oil tanker can carry of crude oil, or . This is more than six times the amount spilled in the widely known "Exxon Valdez" incident. In this spill, the ship ran aground and dumped of oil into the ocean in March 1989. Despite efforts of scientists, managers, and volunteers, over 400,000 seabirds, about 1,000 sea otters, and immense numbers of fish were killed. The International Tanker Owners Pollution Federation has researched 9,351 accidental spills since 1974. According to this study, most spills result from routine operations