Friday, February 15, 2008
Global Warming is so last week, now it's “Global Climatic Change”
The Canadian Space Agency's radio telescope has been reporting Flux Density Values so low they will mean a mini ice age if they continue.
This is because when the magnetic activity is low, the Sun is dimmer, and puts out less radiant warmth. If the Sun goes into dim mode, as it has in the past, the Earth gets much colder.
If the Sun's magnetic activity does not increase, and it goes dim for an extended period, it will get quite chilly. In the meantime the Canada Space Agency, the Royal Observatory Greenwich and the US Air Force Solar Optical Observing Network are all keeping an eye on the Sun.
Via spin the cat, Sun's low magnetic activity may portend an ice age
Every day, scientists hoping to see an increase in solar activity train their instruments at the sun as it crosses the sky. This is no idle academic pursuit: A lull in solar action could potentially drive the planet's temperature down, or even prompt a mini Ice Age.
The last such solar funk corresponded with a period of bitter cold that began around 1650 and lasted, with intermittent spikes of warming, until 1715. While there were competing causes for the climatic shift—including the Black Death's depopulation of tree-cutting Europeans and, more substantially, increased volcanic activity spewing ash into the atmosphere—the sun's lethargy likely had something to do with it.
Via spin the cat, Sun Stays Sluggish as Weathermen Fight for Anti-Ice Age Funding
has me wondering if Jerry Pournelle called it correctly years ago. There's still a lot we don't know about the weather, especially what it'll be doing next week, much less next decade.