[ RadSafe ] ...- CO2 consequences

Mercado, Don don.mercado at lmco.com
Tue Sep 12 09:37:11 CDT 2006

 Ruth Sponsler wrote:

"A team of scientists, led by Benjamin Santer and Tom
Wigley, who both have physics, as well as meteorology credentials, has just published a paper that uses a number of climate models to link hurricane formation with CO2-induced increases in sea surface temperatures."  

Did they happen to mention that global warming is happening on *all the planets in the solar system* bec the sun is hotter these days???

"This Solar Irradiance Reconstruction is by Judith Lean, Naval Research Laboratory. ABSTRACT (Lean 2000): Because of the dependence of the Sun's irradiance on solar activity, reductions from contemporary levels are expected during the seventeenth century Maunder Minimum. New reconstructions of spectral irradiance are developed since 1600 with absolute scales traceable to space-based observations. The long-term variations track the envelope of group sunspot numbers and have amplitudes consistent with the range of Ca II brightness in Sun-like stars. Estimated increases since 1675 are 0.7%, 0.2% and 0.07% in broad ultraviolet, visible/near infrared and infrared spectral bands, with a total irradiance increase of 0.2%. 

Back of an envelope calculation: Earth is estimated to have warmed 0.6 °C ± 0.2 °C so all we need to do is divide the estimated temperature increment by Earth's temperature (288 K) and times by 100 to get the percentage increment thus: 0.6 (K)/288 (K) x 100 = 0.2%. So, the sun is 0.2% more energetic and conveniently the planet's temperature is believed to have increased 0.2%. Solar influence explains the entire change, now everyone's content the global warming thing has been solved, right? No? Us neither, although solar variance seems a likely candidate for at least a portion of the apparent change." 



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