Storm of the Century - 15th anniversary

Today is the 15th anniversary of the "storm of the century" - the blizzard that crippled the eastern United States on March 13 and 14, 1993. The effects were felt from Florida and Georgia through New England (and everywhere in between).

Click here for more detail and commentary, including a link to a National Geographic film on the storm.

I have asked this question many times and have not received an answer - when did global warming begin exactly? Only after 1993?

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Storm coverage - Alabama - March 13, 1993