[norwaypinesavage]

In an engineering career lasting close to half a century, I personally modeled a number of dynamic systems. My first models were on vacuum tube analog computers. I can state categorically that positive feedback systems ALWAYS, QUICKLY, jump to their control limits.

Think of a thermostat that is wired backwards. Turning it up causes the temperature to go down. You feel cold, so you turn it up. The temperature goes down. You turn it higher, and the temperature goes even colder. Very quickly, the thermometer is on its highest setting, and the room is as cold as possible.

The earth has been around for at least 4 billion years. CO2 has changed constantly during that time. If the relationship between CO2 and temperature were one of positive feedback, the control limit would have been reached in the first few years and we wouldn't be here for this debate.

[canuck_conservative]

Very well stated.

“Positive feedback” is the coward’s way out of this debate.