I have heard several people recently comment that they don't believe global warming is true, because it isn't always hot.  The more correct term is "global climate change," and anyone who plans on living another 10 or 20 years should educate themselves about the phenomenon. 


The term "global warming" is a vast oversimplification of a very complicated problem.  The overall, average global temperature is expected to rise, but that does not mean every day in every place will be hotter.  There are major ocean currents that bring warm water to cooler climates, and vice-versa.  It is expected that these will falter and eventually shut down entirely.  One consequence would be that the western part or Europe will get colder, due to the loss of the the warm Atlantic current that keeps the climate there more mild. 

Other worrying effects will be radical changes in rainfall patterns, bringing floods to some places and draught to others.  Canada, for example, may see an enlarged land area become productive for crops, while vast areas of the American "bread basket" may become too arid to grow wheat and corn.  In some parts of the world, this type of change will drive large numbers of people to move, in search of land to live and grow crops on - resulting in political unrest and international conflict.

Unfortunately, very complicated issuse do not lend themselves to the 30-second news segments or political commercials.  I urge everyone to read actual, scientific sources and decide for themselves.  I recommend Discover and Popular Science magazines for articles that most non-scientists can follow.  If you are up for something more challenging, try Scientific American.  Good luck to everyone who has interest in educating themselves on this issue.

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Feb. 2, 2008 at 3:48 PM I am adding a comment so I can come back and read this:)

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Feb. 2, 2008 at 3:51 PM i already know this but i just wanted to add a comment

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Feb. 2, 2008 at 9:14 PM Excellent post!  The term "warming" leads to misunderstanding a lot. 

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