The Kuwaiti oil fires were caused by the
Iraqi military setting fire to 700 oil wells as part of a
scorched earth policy while retreating from Kuwait in 1991 after conquering the country but being driven out by Coalition forces. The fires started in January and February 1991 and the last one was extinguished by November 1991. The resulting fires burned out of control because of the dangers of sending in firefighting crews.
Land mines had been placed in areas around the oil wells, and a military cleaning of the areas was necessary before the fires could be put out. Somewhere around of oil were lost each day. Eventually, privately contracted crews extinguished the fires, at a total cost of US$1.5 billion to Kuwait. By that time, however, the fires had burned for approximately ten months, causing widespread pollution.
Environmental impact Immediately following Iraq's invasion of Kuwait, predictions were made of an environmental disaster stemming from Iraqi threats to blow up captured Kuwaiti oil wells. Speculation ranging from a
nuclear winter type scenario, to heavy
acid rain and even short term immediate
global warming were presented at the
World Climate Conference in Geneva that November. On 10 January 1991, a paper appearing in the Journal
Nature, stated
Paul Crutzen's calculations that the setting alight of the Kuwait oil wells would produce a "
nuclear winter", with a cloud of smoke covering half of the
Northern Hemisphere after 100 days had passed and beneath the cloud, temperatures would be reduced by 5-10 Celsius. This was followed by articles printed in the
Wilmington morning star and the
Baltimore Sun newspapers in mid to late January 1991, with the popular TV scientist personality of the time,
Carl Sagan, who was also the co-author of the first few
nuclear winter papers along with
Richard P. Turco, John W. Birks,
Alan Robock and
Paul Crutzen together collectively stated that they expected catastrophic
nuclear winter like effects with continental sized impacts of "sub-freezing" temperatures as a result of if the Iraqis went through with their threats of igniting 300 to 500 pressurized oil wells and they burned for a few months. Along with Singer's televised critique, Richard D. Small criticized the initial
Nature paper in a reply on 7 March 1991 arguing along similar lines as Singer. Sagan later conceded in his book
The Demon-Haunted World that his prediction did not turn out to be correct: "it
was pitch black at noon and temperatures dropped 4–6 °C over the Persian Gulf, but not much smoke reached stratospheric altitudes and Asia was spared." At the peak of the fires, the smoke absorbed 75 to 80% of the sun's radiation. The particles rose to a maximum of , but were
scavenged by
cloud condensation nuclei from the atmosphere relatively quickly. Sagan and his colleagues expected that a "self-lofting" of the sooty smoke would occur when it absorbed the sun's heat radiation, with little to no scavenging occurring, whereby the black particles of soot would be heated by the sun and lifted/lofted higher and higher into the air, thereby injecting the soot into the stratosphere where it would take years for the sun blocking effect of this
aerosol of soot to fall out of the air, and with that, catastrophic ground level cooling and agricultural impacts in Asia and possibly the
Northern Hemisphere as a whole. In retrospect, it is now known that smoke from the Kuwait oil fires only affected the weather pattern throughout the Persian Gulf and surrounding region during the periods that the fires were burning in 1991, with lower atmospheric winds blowing the smoke along the eastern half of the Arabian Peninsula, and cities such as
Dhahran and
Riyadh, and countries such as
Bahrain experienced days with smoke filled skies and carbon
soot rainout/fallout. Thus the immediate consequence of the arson sabotage was a dramatic regional decrease in
air quality, causing respiratory problems for many Kuwaitis and those in neighboring countries. According to the 1992 study from
Peter Hobbs and Lawrence Radke daily emissions of
sulfur dioxide (which can generate
acid rain) were 57% of that from electric utilities in the United States, emissions of
carbon dioxide were 2% of global emissions and emissions of
soot were 3400 metric tons per day.) Aerial laboratory. ==See also==