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Originally Posted by 1ViciousGSX
We will see a change that alot of people aren't even considering. Ever heard of the "Atlantic Conveyer"? It's the natural flow of Atlantic water currents moving north. Warm water is the upper layer of water which moves north. As it is cooled in the artic region it sinks to the bottom of the ocean and starts moving south again until it reaches warmer climate, raises in temperature which then makes it leave the bottom of the ocean and become the top layer moving north again. As warm water (which brings warm air) reaches the northern hemisphere, ice/glaciers melt and dump water into the Atlantic Ocean. Global warming only adds to the effect. You say "So, what's the big deal with that?" Here's the big deal with that, inland ice that form glaciers is made from rain/fresh water, not sea water. So when this fresh water hits the Atlantic Ocean in large quantities as it will be doing soon, it disrupts the "Atlantic Conveyer" flow. This slows/stops warm water from moving north through the Atlantic. Since warm air/water stop moving north, it gets colder. This is actually how an "Ice-age" gets started. It could only take 10 years of this to completely stop the "conveyer", but 100 years to get it started again.
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Basically that's what happened in the movie... The Day After Tomorrow. The movie may have been a little extreme, but it's the same concept.
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