northwest Climate Science Is Settled Enough
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Doug
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« on: Saturday December 31 2016 17:39:28 AEDT PM »

Climate Science Is Settled Enough
Climate science is not settled, but it’s settled enough.
Raymond T. Pierrehumbert is the Louis Block professor in geophysical sciences at the University of Chicago and the King Carl XVI Gustaf chairman in environmental science at Stockholms Universitet.
“-----Koonin’s most seriously misleading claims concern uncertainty. There are two parts to his attack: first, that climate scientists systematically suppress discussion of uncertainty, especially when communicating with policymakers; and second, that climate science is too uncertain to provide a basis for policy decisions.
To anybody with even a cursory familiarity with the climate science literature, the claim that it is impermissible to discuss uncertainties is laughable. There is hardly anything else scientists do, in climate science or elsewhere, besides dispute received wisdom and one another’s findings. The reward structure in all of science favors those who overturn some widely accepted theory over those who just confirm or provide an elaboration on what is already known. A lot of these disputes (and I have been party to several myself) are more like bar fights than the secretive “hushed sidebar conversations” Koonin makes them out to be. Climate science has been refined in the fires of such disputes for well over a century now, and the constant turmoil of questioning still dominates the professional journals and meetings. Indeed, most of the uncertainties highlighted by Koonin were first identified and reported in professional journals by climate science “insiders” (in some cases even IPCC authors), and continue to be vigorously discussed there.”
-------Science is never settled, but it can be settled enough. Newtonian mechanics was not settled science—it was overturned by both relativity and quantum mechanics. Nonetheless, it was, and continues to be, settled enough to build bridges and design airplanes. It is in this spirit that the word settled is used sometimes in connection with climate science, and not in the cartoonish sense that Koonin fabricates in his straw-man argument. It is always easy to find gaps—even very significant gaps—in the understanding of a system as complex as the climate, but the issue on the table isn’t whether our understanding is complete, but whether it is complete enough to justify the need for serious controls on carbon dioxide emissions. It’s not the situation that the range of climate predictions runs from “pretty good” to “somewhat bad”—the truth is more like “bad” to “extremely bad,” unless emissions growth is halted and eventually reversed. “
  
link_http://www.slate.com/articles/health_and_science/science/2014/10/the_wall_street_journal_and_steve_koonin_the_new_face_of_climate_change.html
The demented  right wing extremist and climate  change denier  and conspiracy theorist  Inhere MAD should do himself and the world a favor by retiring to a nursing home where the residents won't be able to question  the delusional drivel that he spews out !
Edited:Saturday December 31 2016 17:46:47 AEDT PM
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