Annihilator Annihilator:
Nope, it has never happened before, because the simple experience of CO2 making air warmer is not sufficient proof to create a correlation between man-made gas and global temperature. It is so because CO2 emission is only one tiny factor in the whole equation.
Well the radiation physics demonstrates that, ignoring any feedback loops and such, doubling the concentration of carbon dioxide in the atmosphere should raise the surface temperature 1.1 deg C. Note this is an laogarithmic relationship, so the magntiude of the forcing is a function of the factor by which the concentration increases, not the absolute concentration of CO2 (which is why it doesn't matter that CO2 only makes up 385 ppm in the atmosphere (up from about 280 ppm in the pre-industrial age)).
The forcing of any doubling of CO2 is an additional 3.71 W/m2 or so. This is 3.71 W/m that previously would have radiated to space that is now "reflected" in the atmosphere. That energy increase has to be balanced. The most simple means of balancing would be an increase in temperature.
You can get more details onteh equations at wiki (
http://en.wikipedia.org/wiki/Radiative_forcing). And before you jump all over me for referncing wiki, you should probabnly note that most so-called skeptcis--including Richard Lindzen--accept this.
You posit another balancing mechanism. I'd be inertested to know what that is.
$1:
Basically, you're butchering science. You refuse to aknowledge that the question might be a little more complex than 2+2 and use little elements with very little effects on the question to create your theories. If you want to prove that global warming is inevitable you better come up with a better proof, but this proof doesn't exist because the whole scientific community isn't sure about the question and is still gathering data.
I was using my prediction as a specific example to counter your statement:
Annihilator Annihilator:
What really happens is that we're faced with the chaos theory. We could predict the future, but there are so many things invovled that we cannot create a model that will accurately predict what will happen.
The point is that, despite the atmosphere being a chaotic system, one could still make long-term predictions about it. That was the only point of that example, not to say that predicting future climate was as easy as predicting that summer will be wamer than winter.