A catch-all post for comments on my various reviews on significant pro IPCC climate papers.
Just for now though I want to restate that the Greenhouse Effect has to act in the lower atmosphere and then some of that heat is re-radiated to the surface. See basic descriptions on this NOAA site.
Hence my comment that I feel it is odd to ignore lower troposphere trends, because that is where AGW has first to take place.
IPCC Anthropogenic Global Warming (AGW) is driven by increases in trace gases carbon dioxide, methane etc plus contentious postulated positive feedbacks from water vapour which as many authorities state is by far the most abundant greenhouse gas.
To wrap up for now, just a few very general points. Readers who follow weather forecasts and associated satellite imagery do not need me to point out that the lower atmosphere is characterized by constant large scale movement, lateral and vertical and circulation of air masses on hemispheric scales. Dr Philipona has alluded to looking to understand European warming to some extent outside the influence of the NAO and other people may comment on that.
Then there are issues of truly colossal scale heat transport such as the ever present Gulfstream which prevents the European climate from being significantly more frigid.
I have trouble imagining that Dr Philipona’s “line to the sky” radiation measurements from his Alpine site, however beautifully expressed in mathematics, can explain European warming in the face of these other confounding weather and climate factors.