Saturday, November 17, 2012

People Under 35 Have Never Seen Normal Global Temperatures

I have lived in Huntsville, AL or Atlanta, GA almost all the time since 1960. They have very similar weather. I remember that every 3 or 4 years , there would be at least once day when the temperature would get down to around 3F. Now if it gets down to 20F, it's unusual.
Note that the "161 year average" would include recent warmer temperatures, and thus is warmer than normal to start off with, so understates the situation.

http://thinkprogress.org/climate/2011/08/02/285660/people-under-35-have-never-seen-normal-global-temperatures/

“If you’re younger than 26, you have never seen a month where the global mean was as cold as the 161 year average,” observes Robert Grumbine. In contrast, “there are no periods as long as even 20 years of continual below reference temperatures.” He finds that the period 1880-1940 seems to best represent a stable long-term average for global temperatures. If that’s the case, then the “last time the global mean was below the climate normal was March, 1976. If you’re 35 or younger, you have never seen a global mean below climate’s real normal.”

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