Geophysical, archaeological, and historical evidence support a solar-output model for climate change
by Charles A. Perry* and Kenneth J. Hsu†
*U.S. Geological Survey, Lawrence, KS 66049; and †Tarim Associates, Frohburgstrasse 96, Zurich, Switzerland 8006
Contributed by Kenneth J. Hsu, September 5, 2000
Although the processes of climate change are not completely understood, an important causal candidate is variation in total
solar output. Reported cycles in various climate-proxy data show a tendency to emulate a fundamental harmonic sequence of a basic
solar-cycle length (11 years) multiplied by 2N (where N equals a positive or negative integer). A simple additive model for total
solar-output variations was developed by superimposing a progression of fundamental harmonic cycles with slightly increasing
amplitudes. The timeline of the model was calibrated to the Pleistoceney-Holocene boundary at 9,000 years before present.
The calibrated model was compared with geophysical, archaeological, and historical evidence of warm or cold climates during the
Holocene. The evidence of periods of several centuries of cooler climates worldwide called ”little ice ages,” similar to the period
anno Domini (A.D.) 1280-1860 and reoccurring approximately every 1,300 years, corresponds well with fluctuations in modeled
solar output.
A more detailed examination of the climate sensitive history of the last 1,000 years further supports the model. Extrapolation
of the model into the future suggests a gradual cooling during the next few centuries with intermittent minor warmups and a return
to near little-ice-age conditions within the next 500 years. This cool period then may be followed approximately 1,500 years from now
by a return to altithermal conditions similar to the previous Holocene Maximum.
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Why is a study from fifteen years ago news?
Oh oh ,this posts subject matter is going to heat up…….
Although the processes of climate change are not completely understood…
Geez, Jack. Don’t you and these scientists know the science has been settled?
Anyone who does not believe in AGW is incredibly ignorant, a kook or a shill for the oil and coal companies. Just ask the liberals who infest this blog. Or ask Obammie, Pelosi or Algore.
Okay Chris, try a 2015 article about a physicist’s report on the subject.
I know, I know he would be “discredited” in your world because he’s not a climate scientist.
But Jürgen Lange Heine is “a physicist with the German-based European Institute for Climate and Energy.” An excerpt from the article:
More here for those who like some specifics.
This article:
Hard to believe in an ice age when the temp here in AZ is 117 . .
Tina gets it, Chris, the English major booby prize winner is full of it as usual.
I just want to know WHEN the global warming/cooling frozen wasteland/desert wasteland san Francisco underwater disaster is going to happen. It’s been predicted for 40 some years now and it still hasn’t happened. Is there some point where the science has to put up or shut up?