Re: [RC] [RC] Global warming - Tamara Woodcock
Depending on which scientist you ask, the most dangerous result of global
warming could be the triggering of a ice age, Global temperature change can
be fairly quick and drastic. Like slowly walking up a not-so-steep hil,
then finding a 70% climb the las few feet followed sheer drop off. If the
Earth is due for another plummet in temperature, such a change could be
started by changes in the North Atlantic currents.
The warmth of the northern latitudes (say Europe) is created by a powerful
North Atlantic current that flows from the tropics to Greenland. This is
what makes Europe (same latitude as Canada) so much warmer than Canada
The north Atlantic current delivers warm surface water to northern regions.
This salt-heavy sinks near Greenland and then goes back south again.
A greenhouse warming effect can cause cooling by dumping large amounts of
fresh water into the ocean, and interrupting this current. Under greenhouse
warming, large amounts of fresh water enter the ocean through increased
high-latitude rainfall and melting ice. Shifts in the ice flow can also
cause the buildup and then sudden release of millions of gallons of
freshwater into the Atlantic. Thus disrupting the current, thus changeing
global warming into ice age.
So see, everyone is right, no matter which side of the temperature issue you
fall on...
-Tamara
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