troposphere

A recent comment here brought up the frequent contrarian argument that there is a signature patern to enhanced greenhouse gas warming that is missing in the observational data despite showing up in the models. This is notably absent from the How to talk to a climate sceptic guide, something I hope to rectify Real Soon Now(tm). I left a comment response but thought I may as well put it here in a new thread as it is OT over there. Here is the referenced graph: Figure 9.1. Zonal mean atmospheric temperature change from 1890 to 1999 (°C per century) as simulated by the PCM model from (a) solar…