On a related note, it's possible that global warming could cause northern Europe and the US/Canada East Cost to experience significantly colder temperatures - [link|http://www.whoi.edu/home/about/whatsnew_abruptclimate.html|Can Global Warming Cause an 'Ice Age'?]
Global warming could actually lead to a big chill in some parts of the world. If the atmosphere continues to warm, it could soon trigger a dramatic and abrupt cooling throughout the North Atlantic region\ufffdwhere, not incidentally, some 60 pecent of the world\ufffds economy is based.
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Average winter temperatures could drop by 5 degrees Fahrenheit over much of the United States, and by 10 degrees in the northeastern United States and in Europe. That\ufffds enough to send mountain glaciers advancing down from the Alps. To freeze rivers and harbors and bind North Atlantic shipping lanes in ice. To disrupt the operation of ground and air transportation. To cause energy needs to soar exponentially. To force wholesale changes in agricultural practices and fisheries. To change the way we feed our populations. In short, the world, and the world economy, would be drastically different.
Basically, the "Great Ocean Conveyor" that transports warm ocean water to northern Europe could be disrupted. This warm water is what causes London to have warmer winters than New York, even though its further north.

[link|http://www.chron.com/cs/CDA/story.hts/front/1597292|Ozone hole over Antarctica has shrunk and split] Oddly enough, they are attributing the improvement to warmer temperatures. Maybe Global Warming's good for something afterall.
WASHINGTON -- The ozone hole over Antarctica is markedly smaller this year than in the last few years and has split in two, government scientists reported today.
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This year's improv