As is apparent throughout the climate change threads, the alarmist posts appeal to emotion. When confronted with scientific viewpoints, their response is ad hominem, repetitive spamming, and appeals to consensus and authority.
The tireless alarmist posters need only respond to two points:
1) How is the logarithmic function of CO2 absorbance circumvented? 2) By what mechanism is the hydrological cycle sensitised by increased [CO2]?
