January 20, 2006
Academic prescribes
turbines to cool global warming
Scheme would cost every
European a whopping $500
NUNATSIAQ NEWS
A researcher at the University
of Alberta has come up an odd scheme to reduce the effects of global warming
- one that involves 8,100 barges equipped with wind turbines pumping water to
produce more Arctic ice.
Dr. Peter Flynn, who holds
the Poole Chair in Management for Engineers, suggested the unusual plan as a
last resort to deal with one of the strangest consequences of climate change:
it could actually plunge Europe into a deep freeze.
That's because a warming
climate has weakened the Gulf Stream, a current that works like a giant conveyor
belt, pulling warm water from the south Atlantic into the Greenland Sea, where
it cools and sinks into the deep.
This movement of warm water
releases heat into the air. And that keeps the climate of countries like the
UK, which is at the same latitude as Labrador, soggy and mild rather than bitterly
cold.
But with the amount of
Arctic sea ice shrinking, the Gulf Stream has slowed. Research conducted last
summer showed the Gulf Stream had weakened by some 30 per cent.
To prevent Europe from
freezing over, Flynn suggests that 8,100 barges mounted with wind turbines and
water pumps could be frozen into the sea ice.
The pumps, powered by the
turbines, would gush water from beneath the ice on to the surface, where it
would freeze and thicken up to seven metres during the winter.
The project comes with
a hefty pricetag: $50 billion. But during an appearance on the CBC science program
Quirks and Quarks, Flynn reasoned that Europe's big chill could affect 100 million
people, which works out to just $500 each.
"If the glaciers are
at your back door or if the Thames is freezing over, $500 per person is not
too large a number," he said.
He added that curbing the
amount of fossil fuels being burned is the best cure for global warming, but
other options may be needed.
"This would be our
last choice. Our first choice would be not to put too much carbon in the atmosphere."
"We'd love to treat
the root of the problem, but if the world gets into a crisis, it might be necessary
to deal with the symptoms as well."
TOP
|