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Wednesday, February 6, 2008

The Sun is Dimming and Scientists Fight for Funding to Study for Harbingers of New Ice Age

The sun is in a "funk"--unsure of what to do, when to kick into its new cycle: Solar Cycle 24.


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.

...The planet’s climate is a messy picture, with all sorts of influences and feedback cycles that need to be taken into account. In order to build more accurate computer models, scientists need to understand both anthropogenic factors and the link between the sun and our planet, Tapping says. To help get at the sun’s influence, he and other researchers connect Earth’s temperature with historic sunspot records of sky watchers from Europe and China, as well as with carbon-14 isotopes­—residue from cosmic rays delivered by the sun’s magnetic field—found in tree rings. To understand our role in climate change,” he says, “we need to understand the natural process.”....


Source: Al Fin, who has more.

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