Gulf War oil spill: Difference between revisions
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More recent scientific studies strongly disagree with this 1993 assessment. Marshlands and mud tidal flats continued to contain large quantities of oil, over ten years later, and full recovery is likely to take decades. |
More recent scientific studies strongly disagree with this 1993 assessment. Marshlands and mud tidal flats continued to contain large quantities of oil, over ten years later, and full recovery is likely to take decades. |
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Dr. Jacqueline Michel, US geochemist (2010 interview – |
Dr. Jacqueline Michel, US geochemist (2010 interview – transcript of radio broadcast):<ref>http://www.theworld.org/2010/05/04/lessons-learned-from-gulf-war-oil-spill/</ref> <blockquote>The long term effects were very significant. There was no shoreline cleanup, essentially, over the 800 kilometers that the oil – - in Saudi Arabia. And so when we went back in to do quantitative survey in 2002 and 2003, there was a million cubic meters of oil sediment remained then 12 years after the spill.... [T]he oil penetrated much more deeply into the intertidal sediment than normal because those sediments there have a lot of crab burrows, and the oil penetrated deep, sometimes 30, 40 centimeters, you know a couple of feet, into the mud of these tidal flats. There’s no way to get it out now. So it has had long term impact.</blockquote> |
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Dr. Hans-Jörg Barth, German geographer (2001 research report):<ref>http://www.uni-regensburg.de/Fakultaeten/phil_Fak_III/Geographie/phygeo/downloads/barthcoast.pdf</ref> <blockquote>The study demonstrated that, in contrary to previously published reports e.g. already 1993 by [[United Nations Environment Programme|UNEP]], several coastal areas even in 2001 still show significant oil impact and in some places no recovery at all. The salt marshes which occur at almost 50% of the coastline show the heaviest impact compared to the other ecosystem types after 10 years. Completely recovered are the rocky shores and mangroves. Sand beaches are on the best way to complete recovery. The main reason for the delayed recovery of the salt marshes is the absence of physical energy (wave action) and the mostly anaerobic milieu of the oiled substrates. The latter is mostly caused by [[cyanobacteria]] which forms impermeable mats. In other cases tar crusts are responsible. The availability of oxygen is the most important criteria for oil degradation. Where oil degrades it was obvious that benthic intertidal fauna such as crabs re-colonise the destroyed habitats long before the [[halophytes]]. The most important paths of regeneration are the tidal channels and the adjacent areas. Full recovery of the salt marshes will certainly need some more decades.</blockquote> |
Dr. Hans-Jörg Barth, German geographer (2001 research report):<ref>http://www.uni-regensburg.de/Fakultaeten/phil_Fak_III/Geographie/phygeo/downloads/barthcoast.pdf</ref> <blockquote>The study demonstrated that, in contrary to previously published reports e.g. already 1993 by [[United Nations Environment Programme|UNEP]], several coastal areas even in 2001 still show significant oil impact and in some places no recovery at all. The salt marshes which occur at almost 50% of the coastline show the heaviest impact compared to the other ecosystem types after 10 years. Completely recovered are the rocky shores and mangroves. Sand beaches are on the best way to complete recovery. The main reason for the delayed recovery of the salt marshes is the absence of physical energy (wave action) and the mostly anaerobic milieu of the oiled substrates. The latter is mostly caused by [[cyanobacteria]] which forms impermeable mats. In other cases tar crusts are responsible. The availability of oxygen is the most important criteria for oil degradation. Where oil degrades it was obvious that benthic intertidal fauna such as crabs re-colonise the destroyed habitats long before the [[halophytes]]. The most important paths of regeneration are the tidal channels and the adjacent areas. Full recovery of the salt marshes will certainly need some more decades.</blockquote> |
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Revision as of 16:21, 16 June 2010
The Gulf War oil spill is regarded as the second largest oil spill in history, resulting from the 1990 Iraqi invasion of Kuwait.
Cause
Iraqi forces opened valves at the Sea Island oil terminal and dumped oil from several tankers into the Persian Gulf.[1] The apparent strategic goal was to foil a potential landing by US Marines.[1]
The immediate reports from Baghdad said that American air strikes had caused a discharge of oil from two tankers. Coalition forces determined the main source of oil to be the Sea Island terminal in Kuwait. [citation needed] American airstrikes on January 26 destroyed pipelines to prevent further spillage into the Persian Gulf. [citation needed] Several other sources of oil were found to be active: tankers and a damaged Kuwaiti oil refinery near Mina Al Ahmadi, tankers near Bubiyan Island, and Iraq's Mina Al Bakr terminal.[2]
Environmental impact
The oil spill, which began on January 23, 1991, caused considerable damage to wildlife in the Persian Gulf especially in areas surrounding Kuwait and Iraq.[2] Estimates on the volume spilled usually range around 11 million barrels (462 million gallons or 1.75 billion liters);[3] the slick reached a maximum size of 101 by 42 miles (4242 square miles or 10860 km²) and was 5 inches (13 cm) thick in some areas. Despite the uncertainty surrounding the size of the spill, figures place it several times [4] the size (in gallons spilled) of the Exxon Valdez oil spill, and almost twice the size of the 1979 Ixtoc I blowout in the Gulf of Mexico.
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, a million barrels were recovered and 2 million to 3 million barrels washed ashore, mainly in Saudi Arabia.[5]
More recent scientific studies strongly disagree with this 1993 assessment. Marshlands and mud tidal flats continued to contain large quantities of oil, over ten years later, and full recovery is likely to take decades.
Dr. Jacqueline Michel, US geochemist (2010 interview – transcript of radio broadcast):[6]
The long term effects were very significant. There was no shoreline cleanup, essentially, over the 800 kilometers that the oil – - in Saudi Arabia. And so when we went back in to do quantitative survey in 2002 and 2003, there was a million cubic meters of oil sediment remained then 12 years after the spill.... [T]he oil penetrated much more deeply into the intertidal sediment than normal because those sediments there have a lot of crab burrows, and the oil penetrated deep, sometimes 30, 40 centimeters, you know a couple of feet, into the mud of these tidal flats. There’s no way to get it out now. So it has had long term impact.
Dr. Hans-Jörg Barth, German geographer (2001 research report):[7]
The study demonstrated that, in contrary to previously published reports e.g. already 1993 by UNEP, several coastal areas even in 2001 still show significant oil impact and in some places no recovery at all. The salt marshes which occur at almost 50% of the coastline show the heaviest impact compared to the other ecosystem types after 10 years. Completely recovered are the rocky shores and mangroves. Sand beaches are on the best way to complete recovery. The main reason for the delayed recovery of the salt marshes is the absence of physical energy (wave action) and the mostly anaerobic milieu of the oiled substrates. The latter is mostly caused by cyanobacteria which forms impermeable mats. In other cases tar crusts are responsible. The availability of oxygen is the most important criteria for oil degradation. Where oil degrades it was obvious that benthic intertidal fauna such as crabs re-colonise the destroyed habitats long before the halophytes. The most important paths of regeneration are the tidal channels and the adjacent areas. Full recovery of the salt marshes will certainly need some more decades.
The Financial Times, in reference to the April 2010 Deepwater Horizon oil spill in the Gulf of Mexico, cited the 1993 optimistic assessment of the Gulf War oil spill as evidence that "Initial warnings of catastrophic environmental damage from oil spills can turn out to be overdone".[8]
See also
References
- ^ a b "Timeline: 20 years of major oil spills". Australian Broadcasting Commision. May 4, 2010. Retrieved May 25, 2010.
- ^ a b Bultmann, Paul R. (2001). "Environmental Warfare: 1991 Persian Gulf War". State University of New York College at Oneonta. Retrieved 2009-10-28.
- ^ G. Landrey, Wilbur (30 January 1991). "Oil slick in gulf likely to spread". St. Petersburg Times: p. 5A. Retrieved 5 May 2010.
{{cite journal}}:|pages=has extra text (help) - ^ http://news.bbcimg.co.uk/media/images/47965000/gif/_47965679_oil_spills_comp_466.gif
- ^ "Gulf Found to Recover From War's Oil Spill". New York Times. 1993-03-18. Retrieved 2009-10-28.
- ^ http://www.theworld.org/2010/05/04/lessons-learned-from-gulf-war-oil-spill/
- ^ http://www.uni-regensburg.de/Fakultaeten/phil_Fak_III/Geographie/phygeo/downloads/barthcoast.pdf
- ^ "Confusion over scale of oil spill pollution: Infobox "Damage warnings can be overdone" by Ed Crooks in London". Financial Times. 2010-05-20. Retrieved 2010-05-22.
