- The models have been corrected to address urban heat island effects.
- Other measurements (e.g., satellite) also show warming
- While the “heating precedes CO2 increases” observaton does render Gore’s long-term temp graphs bogus, they don’t mean that CO2 is not a greenhouse gas.

Here is a BBC summary of interest: http://news.bbc.co.uk/2/hi/in_depth/629/629/7074601.stm

Also, your point about CO2 only blocking certain frequencies is interesting, but does it really show that CO2 concentrations don’t have a basically linear impact until the concentration is pretty high? Obviously no concentration would stop all reflection, and at some point, all the energy at the relevant frequences will have been absorbed, but are we close to that point? Is there any way to estimate where we are on that continuum?

Thanks for doing the incredible amount of work your project must have required!

A natural reading of these results is that the measured global surface temperature fails to compensate for the urban heat island effect, but the more extensive developed world measurement networks are not quite so dominated by such.