A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).


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Chiefio: minor changes in clouds swamp the effect of CO2 — see it every day

I was taken by the way Chiefio slices away the clutter to leave bare the most pertinent point. From day to day, the sun, the latitude, our orbit, and the CO2 levels are the same as the day before, yet the temperature can swing wildly. Over a whole month, most variables are constant, yet one obviously dominates the monthly average, a factor we don’t even have good data one in the long run.

Is The Average Variation Of Clouds CO2?

Now the one big thing I can add to the graph itself is simple. I watched the sky during that time, closely. The cool days were cloudy to overcast. The hot days were clear blue sky. Temperature directly matched to degree of clouds. Cloudy days are cool. Clear days are hot.

During these three weeks of data, there is nearly zero change of any of the Milankovitch parameters. Insolation is a functional constant to a large number of decimal places. Our latitude and longitude and distance to water do not change. All manner of variables in this complex soup are held constant by the nature of their 1000s of year rate of change. On the scale of [...]

Chiefio (E.M.Smith) responds to Bain et al

In the comments here: E.M.Smith (Chiefio) responded to Paul Bain and then posted it on his own site. It’s very popular (thank you Michael!)

Response to Paul Bain

Dear Paul Bain:

First off, thank you for responding.

FWIW, I am a hard core skeptic. I’m the “target” of your analysis. As such, what folks like me think ought to be particularly important to you. So a bit of history on me and climate change.

I first came to the AGW issue thinking “Gee, this looks important, I ought to learn more about it.” At the Skeptic sites (like WUWT) I had generally kind acceptance and explanation of where I had parts missing from my understanding of the “issues” about AGW and where it was “gone wrong”. At “Believer” sites (an curiously appropriate term as it has all the hallmarks of a religious belief) I would ask simple and innocent questions and largely get derision in return. Simply asking “But doesn’t CO2 have a log limit on absorption effects that we have passed?” or worse, saying “But this article (on skeptic site) seems to have a valid issue.” would bring “Attack the messenger” responses. That, for me, was the first and largest [...]