Comments on: In Any Other Context, This Would Be Quackery http://www.coyoteblog.com/coyote_blog/2007/04/in_any_other_co.html Dispatches from a Small Business Sun, 12 Feb 2012 09:39:47 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: steep http://www.coyoteblog.com/coyote_blog/2007/04/in_any_other_co.html/comment-page-1#comment-5361 steep Wed, 18 Apr 2007 15:52:53 +0000 http://coyote-blog.com/wordpress/2007/04/in_any_other_co.html#comment-5361 <p>jb,</p> <p>You should do a little reading at climateaudit.org. I'm sure the discussion<br /> there will help you understand why coyote says quackery. Especially any<br /> discussion of the statistical methods used by dendro climatologists.</p> <p>BTW, the evidence for MWP is historical (ie. settlements in Greenland,<br /> Grapes in England, etc.) Recent tree-ring proxies seem to try to refute the history.</p> jb,

You should do a little reading at climateaudit.org. I’m sure the discussion
there will help you understand why coyote says quackery. Especially any
discussion of the statistical methods used by dendro climatologists.

BTW, the evidence for MWP is historical (ie. settlements in Greenland,
Grapes in England, etc.) Recent tree-ring proxies seem to try to refute the history.

]]> By: jb http://www.coyoteblog.com/coyote_blog/2007/04/in_any_other_co.html/comment-page-1#comment-5360 jb Wed, 18 Apr 2007 13:19:06 +0000 http://coyote-blog.com/wordpress/2007/04/in_any_other_co.html#comment-5360 <p>Now, I often agree with most everything you say, but you're not well-founded here. There are proxies for temperature over time, just like there are ways to determine the age of bones and fossils. Would you describe a statement that "these primitive people lived in this area 10,000 years ago" as quackery? </p> <p>Because they're using similar concepts - one measures carbon-14, the other (temperature proxies) looks at tree ring data and correlates it to current temperature data to extrapolate what happened in the past. That's not unreasonable, and, for that matter, that's the same technique that shows that the Medieval Warming Period occurred (although GW advocates claim that the MWP was a local event, or never occurred at all)</p> <p>For what it's worth, I generally agree that yes, man-made CO2 is having some effect, but it's not nearly as dire as the anti-capitalists claim that it is. I am also expect that increased cloud cover predicted by climate models will provide a significant negative feedback to the warming cycle.</p> <p><br /> </p> Now, I often agree with most everything you say, but you’re not well-founded here. There are proxies for temperature over time, just like there are ways to determine the age of bones and fossils. Would you describe a statement that “these primitive people lived in this area 10,000 years ago” as quackery?

Because they’re using similar concepts – one measures carbon-14, the other (temperature proxies) looks at tree ring data and correlates it to current temperature data to extrapolate what happened in the past. That’s not unreasonable, and, for that matter, that’s the same technique that shows that the Medieval Warming Period occurred (although GW advocates claim that the MWP was a local event, or never occurred at all)

For what it’s worth, I generally agree that yes, man-made CO2 is having some effect, but it’s not nearly as dire as the anti-capitalists claim that it is. I am also expect that increased cloud cover predicted by climate models will provide a significant negative feedback to the warming cycle.

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