Wednesday, January 07, 2009

Global Warming is Really Global Cooling
"The planet has grown steadily warmer in recent decades": In fact, the reverse is true. The fastest rate of growth in global temperature, at a rate equivalent to almost 2 degrees Celsius per century, was between 1910 and 1930. No "recent decade" has matched that warming rate, though 1975-1998 came close. Between 1940 and 1975, and again between 2001 and the present, global temperatures have exhibited a downtrend. In fact, the current warming began 300 years ago, at the end of the Maunder Minimum, a 70-year period when there were very few sunspots on the face of the Sun. Between 1700 and 1735, according to the world's oldest instrumental temperature dataset, the temperature in central England rose by 2.2 degrees C, equivalent to 6.3 C/century, or about nine times the warming rate seen in the 20th century.

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