Nuke War in Middle East Would Cause World Havoc
WA****NGTON (AP) - A regional nuclear war would not only be devastating
to the countries involved, it would cause havoc worldwide for at least
a decade, according to a new analysis.
The massive fires resulting from even a limited conflict would blast
enough soot into the atmosphere to create an ozone hole over heavily
populated areas, researchers warned in a paper in Monday's online
edition of Proceedings of the National Academy of Sciences.
A region of depleted ozone over the Antarctic, known as an ozone hole,
has been a concern for years as it allows damaging ultraviolet
radiation from the sun to reach the Earth's surface. Some chemicals
have been banned from use to help eliminate that hole.
Unlike the Antarctic, a nuclear-induced ozone hole would affect much
of the world, causing damage to plants and animals and adding to skin
cancer, eye damage and other effects in millions of people, according
to researchers led by Michael J. Mills of the University of Colorado.
Mills' team used complex computer programs to model what would happen
in the atmosphere in the event of a war between India and Pakistan in
which each detonated 50 Hiro****ma-sized nuclear explosives.
They calculated that the blasts would send as much as five million
metric tons of soot as high as 50 miles into the atmosphere.
The soot and the heat from solar radiation would cause a series of
chemical reactions that would break down the stratospheric ozone layer
that protects Earth from harmful ultraviolet radiation, they said.
"We would see a dramatic drop in ozone levels that would persist for
many years," Mills said in a statement. "At mid-latitudes the ozone
decrease would be up to 40 percent, which could have huge effects on
human health and on terrestrial, aquatic and marine ecosystems."
They calculated that a 40 percent ozone decrease would result in a 132
percent increase in light damage to plants and a 213 percent increase
in DNA damage associated with skin cancer.
The mid-latitudes are the regions between the tropics and the arctic
and are home to the largest numbers of people.
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On the Net:
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