The cognitive dissonance of AGW

The Hockey Schtick
"There is a large cognitive dissonance required to be a true AGW believer, hence the comparison to religious beliefs. Take, for instance, the ability to simultaneously acknowledge that CO2 levels have been 10 to 20 times higher than the present during multiple periods of Earth's history without causing a 'tipping point' of no return, while retaining the belief that CO2 levels 10 to 20 times less are causing a 'tipping point' now. In fact, an entire ice age came and went with CO2 levels about 11 times higher than the present throughout the Ordovician period shown in the graphic below. The latest eco-scare-alert notes that Antarctica abruptly transitioned from a warm, subtropical hothouse to the present solid ice sheet during a period when CO2 levels exceeded those of today by 10 times."