"Terry Harper" wrote in message ...
I haven't said that there isn't. However, there is also a chain of chemical
reactions forming the Carbon cycle, and those reactions have kinetics and
equilibria which are temperature dependent. That restrains the level of CO2
in the atmosphere.

Well quite obviously its not restraining it enough since the levels are rising
consistently year on year. I suppose one could hope that at some trigger temp
this mechanisms might go into overdrive and magically bring the CO2 levels
down again but I wouldn't lay any bets on it and it would be foolish for
governments to assume that and hence do nothing to mitigate fossil fuel usage.

B2003