Tuesday, September 2, 2008

Sun goes cold - get your overcoat out

Our spotless sun - get ready for global cooling

I've pointed out before that a huge influence on earth's tempaertures is the sun, specifically sunspot activity. The more sunspots, the warmer the earth. Daily Tech reports that now the sun has tied a 94-year-old record: an entire month has passed without a single spot on the sun.

According to data from Mount Wilson Observatory, UCLA, more than an entire month has passed without a spot. The last time such an event occurred was June of 1913. Sunspot data has been collected since 1749. ...

... In the past 1000 years, three previous such events -- the Dalton, Maunder, and Spörer Minimums, have all led to rapid cooling. On was large enough to be called a "mini ice age". For a society dependent on agriculture, cold is more damaging than heat. The growing season shortens, yields drop, and the occurrence of crop-destroying frosts increases.
The relationship between sunspots and earth's climate is not fully understood, although the correlations are so strong over several centuries of empirical data that practically no scientist of the field doubts the relationship.

1 comments:

bobquick said...

Just a word of caution. If we have a really cold winter, it will still qualify as extreme weather conditions, and therefore qualify under the envelope of anthropomorphic climate change. Take this for instance, from the Aug 1 Sydney Morning Herald:

“Forget global warming - the latest problem is global cooling.
Conservation group WWF has blamed climate change for the coldest August in Sydney for more than 60 years.

The freezing temperatures are proof of the urgent need to cut carbon pollution, according to WWF development and sustainability program manager Paul Toni.”

What a marvelous theory. All possible outcomes proceed from the same cause. Of course, this is physically impossible, as any sharp high-school general science student should be able to tell you, but AGW has never been about science, has it.