Here’s How to Avoid Climate Panics

By Dennis Avery – Re-Blogged From TownHall

Americans have suffered needless climate-related panic for the past 40 years—not realizing that, since 1850, our newspapers have given us a climate scare about every 25 years. And none of them was valid.

Fortunately, climate science is now good enough to predict the key abrupt climate cycles that Mother Nature visits upon earth through the millennia. After the cold of the Maunder Sunspot Minimum at 1715, for example, earth’s temperature warmed 0.3 degrees in less than 25 years. Then two centuries later, the temperatures dropped equally swiftly into the cold of the Dalton Minimum. These abrupt shifts occurred over decades rather than centuries. Some shifts have been favorable, an equal number were unfavorable – and none involved carbon dioxide.

Here's How to Avoid Climate Panics

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Lessons from Climate Past – Part 1

By Jim Steele – Re-Blogged From http://www.WattsUpWithThat.com

Dansgaard Oeschger Events and the Arctic Iris Effect

During the last Ice Age, Greenland’s average temperatures dramatically rose on average every 1500 years by 10°C +/- 5°C in a just matter of one or two decades, and then more gradually cooled as illustrated in Figure 1 below (8 of the 25 D-O events are numbered in red on upper graph; from Ahn 2008). These extreme temperature fluctuations between cold “stadials” that lasted about a thousand years and warm “interstadials” lasting decades are dubbed Dansgaard-Oeschger events (D-O events). These rapid temperature fluctuations not only rivaled the 100,000‑year fluctuations between maximum glacial cold and warm interglacial temperatures but D‑O warm events coincided with expanding Eurasian forests (Sánchez Goñi 2008, Jimenez-Moreno 2009), northward shifts of subtropical currents along the California coast (Hendy 2000), and shifts in belts of precipitation in northern South America (Peterson 2001).

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