progressiveslol wrote on Oct 22
nd, 2012 at 5:55am:
MOTR wrote on Oct 22
nd, 2012 at 5:34am:
That's pretty much what I was taught at school. Honestly, progs, you're the first person I've ever heard dispute it. How cold do you reckon it would be?
BTW, Rabbitoh has identified a number of climate forcings in his discussions with you about climate change. None of them fit with what we are seeing today. It is ridiculous for you to suggest he is ignoring them. How about you tell us how it is possible for the Arctic to be losing ice mass if the planet is not warming.
So even you are saying the earths temp would be 33 degrees cooler without co2. Can you confirm that is what you are saying.
You asked a question. You were given an answer.
If there were no CO2 in the atmosphere, the entire greenhouse effect would effectively not exist and the average temperature of the planet would drop to about -18degC. About 33 degrees cooler than present:
Atmospheric CO2: Principal Control Knob Governing Earth’s TemperatureAmple physical evidence shows that carbon dioxide (CO2) is the single most important climate-relevant greenhouse gas in Earth’s atmosphere. This is because CO2, like ozone, N2O, CH4, and chlorofluorocarbons, does not condense and precipitate from the atmosphere at current climate temperatures, whereas water vapor can and does. Noncondensing greenhouse gases, which account for 25% of the total terrestrial greenhouse effect, thus serve to provide the stable temperature structure that sustains the current levels of atmospheric water vapor and clouds via feedback processes that account for the remaining 75% of the greenhouse effect. Without the radiative forcing supplied by CO2 and the other noncondensing greenhouse gases, the terrestrial greenhouse would collapse, plunging the global climate into an icebound Earth state.http://www.sciencemag.org/content/330/6002/356If you disagree with the answer I gave you - perhaps you would like to explain why? After all - it is only a hypothetical question which is impossible to give an exact and definitive answer for.
But I have given you an answer based on what science tells us. What are you basing your opinion on? What Alan Jones tells you?
BTW: We are still waiting for you to tell us what these "other factors" are that have cause the actic ice cap to decrease, global glacial mass balance to decrease and sea levels to rise if it isn't global warming.
What are these "other factors"?