Watts Up With That?

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Guest post by Alec Rawls

When he argues that a reduction in forcing will cause cooling Dana Nuccitelli is not actually talking about drinking. He is talking about the solar forcing of global temperature, but the drinking analogy is a handy way to understand where his argument goes off the rails.

Mr. Nuccitelli, who blogs for the consensus-approvedSkeptical Science website, was writing about Henrik Svensmark’s GCR-cloud theory of indirect solar forcing, where Galactic Cosmic Rays are hypothesized to seed cloud formation. If Svensmark is right then a strong solar wind, by deflecting some GCR from reaching the earth, in-effect blows some of the clouds away, letting more sunlight through to warm the planet’s surface.

That can’t possibly explain late 20th century warming says Nuccitelli, because GCR deflection has been estimated (see the Krivova-Solanki graph above) to have peaked by 1980. The rawdata suggests the actual GCR minimum was ten…

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About Standard Climate

Interested in all things about the Planet.
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