Category Archives: Uncategorized

by Judith Curry

Max Anacker writes:

Several posters have stated that it would be good to have a separate thread on “How should a post-IPCC world look?”

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by Judith Curry

There are some climate-relevant stories associated with the 2011 Nobel Prize winners in Physics and Chemistry.

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by Judith Curry

A very interesting session yesterday, I now have links to  the ppt presentations.

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by Judith Curry

The forthcoming annual meeting of the American Chemical Society is hosting two sessions on Climate Change, one of which is available for public participation by registering to participate in a webinar.

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While I have culled considerably the previous thread, it is getting unwieldy for those of you that want to carry on extensive technical discussions.  So here is another thread for extended technical discussion.  Keep your more general comments on the previous thread.  Thank you.

by Douglas Sheil

JC note: this post is a follow on to the Water Vapor Mischief thread that discussed a paper by Makarieva et al. entitled ” Where do winds come from? A new theory on how water vapor condensation influences atmospheric pressure and dynamics.”  Douglass Shiell is coauthor on the paper.

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by Judith Curry

The other threads are having problems with the reply threading, here is a new thread that will hopefully facilitate the discussion

by Judith Curry

On the Part II thread, John Nielsen-Gammon summarized the constructive suggestions as follows.  I’ve edited this to intersperse additional comments from John N-G and also Steve Mosher’s comments on these suggestions:

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On the Uncertainty and the AR5 thread, Fred Moolten and Paul Dunmore provide starkly different arguments for reasoning about multiple lines of evidence.  This issue gets to the heart of the source of much disagreement in the scientific debate about climate change.

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by Terry Oldberg
copyright by Terry Oldberg 2011

As originally planned, this essay was to end after Part II. However, Dr. Curry has asked me to address the topic of logic and climatology in a Part III. By the following remarks I respond to her request.

I focus upon the methodologies of the pair of inquiries that were conducted by IPCC Working Group 1 (WG1) in reaching the conclusions, in its year 2007 report, that:

• “There is considerable confidence that Atmosphere-Ocean General Circulation Models (AOGCMs) provide credible quantitative estimates of future climate change…” [1] and
• the equilibrium climate sensitivity (TECS) is “likely” to lie in the range 2^oC to 4.5^oC [2].

I address the question of whether these methodologies were logical.

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by Tomas Milanovic

There are scientists who equate chaos to randomness. I’d put that category at 90%.

There are scientists who equate chaos with Lorenz. They have seen the butterfly attractor picture one day or the other. They know that chaos is not randomness but not much more. I’d put that category at 9%.

There are then scientists who know what is chaos and really understand it. I’d put that category at 1% and much less for the climate scientists.

The chaos one could and should we be talking about as far as climate is concerned is spatio-temporal chaos.

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Update:  notes on Trenberth’s presentation here.  Ryan Maue comments at WUWT.

by Judith Curry

The Annual Meeting of the American Meteorological Society (AMS) will be held this week (Jan 23-27)   in Seattle, WA.    Program details are provided here.  An overview of what is going on at the meeting is provided in here.

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by Judith Curry

I’ve spent the last several days at the AGU meeting in San Francisco.  With 19,200 participants, there is an overwhelming amount things going on all that the same time.   Here are some highlights of the meeting (some of which I witnessed first hand, others are based on second hand reports).  And also some comments on some of the controversies that are being discussed in the blogosphere.

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by Judith Curry

The American Geophysical Union (AGU) is holding is annual Fall meeting this week (13-17 Dec) in San Francisco.  I’m posting on this to give the broader Climate Etc. a sense of the main professional society for climate scientists.

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