Gulf War oil spill place it several times the size (by volume) of the Exxon Valdez oil spill. The "New York Times" reported that a 1993 study sponsored by UNESCO, Bahrain, Iran, Iraq, Kuwait, Oman, Qatar, Saudi Arabia, the United Arab Emirates and the United States found the spill did "little long-term damage": About half the oil evaporated, were recovered and to washed ashore, mainly in Saudi Arabia. More recent scientific studies have tended to disagree with this assessment. Marshlands and mud tidal flats continued to contain large quantities of oil, over nine years later, and full recovery is likely to take decades. Dr.
Exxon Valdez oil spill spill have been studied. Immediate effects included the deaths of 100,000 to as many as 250,000 seabirds, at least 2,800 sea otters, approximately 12 river otters, 300 harbor seals, 247 bald eagles, and 22 orcas, and an unknown number of salmon and herring. In 2003, fourteen years after the spill, a team from the University of North Carolina found that the remaining oil was lasting far longer than anticipated, which in turn had resulted in more long-term loss of many species than had been expected. The researchers found that at only a few parts per billion, polycyclic aromatic hydrocarbons caused