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When a TV meteorologist says "temperatures will be ten degrees above normal", the word "normal" has a specific meaning. Every 10 years NOAA re-calculates the "normal" temps for the USA based on the prior 30-year averages. The new normals have just been released, based on the 30 year period 1980-2010. Hotter is the new normal. With hotter weather comes more extreme weather. Extreme Weather and Climate Change, 3-part series from Scientific America .. and map of extreme weather events 1995-present.
posted by stbalbach on Jun 30, 2011 - 35 comments

Ice Age Floods Institute. In recent geological time immensely powerful, cataclysmic Ice Age Floods regularly swept across the Pacific Northwest. A proposed Ice Age Floods National Geological Trail is in the works. Virtual tour of Glacial Lake Missoula.
posted by stbalbach on Apr 19, 2004 - 6 comments