muso wrote on Aug 11
th, 2013 at 12:13pm:
Strawman number 1. Utter rot. Nobody is saying that. There is short term natural variation due to solar cycles and the Southern Oscillation index etc. Of course it doesn't matter how many times denialists are told these things, they latch on to the same "temperatures must increase incrementally each year" fallacy.
The sun's activities and the temperature of the Earth correlate quite nicely thank you very much.
Co2 and temperature donot correlate, CO2 follows temperature by a lag of about 800 years.
Quote:Of course, as the CO2 concentration in the atmosphere increases, the forcing due to that CO2 must rise, and as we know, it's one of several forcings, including direct solar forcing itself.
Sure thing pal, but you forget to tell everyone that 770 gigatonnes per annum are from the ecosystems and 30 gigatonnnes per annum are from manmade emissions.
Why is that......????
Why is this NEVER EVER mentioned by dear old AL or the IPCC or Hansen....?????
Why dont they mention that in our past we had 20 times the CO2 we have today.....they act as though CO2 levels have NEVER been higher.
Again why is that.........???????
Quote:The net effect is that the mean global temperature rises, but to consider it only over such a short period borders on ridiculous.
Well then how can they tax the air we breath just because we happened to be on a peak temperature curve.
Quote:Water vapour is a positive feedback. As the temperature rises, on average, the water vapour concentration increases, which gives rise to higher global temperatures. The extent to which this leverage effect occurs is known as the climate sensititivity.
Yes and the computer simulated models tell us that there is a hot spot in the tropopause because of the water vapor and extra manmade CO2 that has accumulated there.
But weather baloons and satellites say there is no hotspot.
Case closed...................................!
Quote:Past events, such as the regional phenomenon known as the "Medieval Warming Period" are indicators of climate sensitivity in the higher range.
You mean what happened during the medieval warm period isn't what just happened now but on a bigger time scale.
For the last few decades our sun was very active and temperatures increased now the sun is entering a quite phase and temperatures will fall.
This is what we've had recently, and on that information the carbon tax ETS all over the world should be scrapped.
Quote:1. 30-years of global cooling from 1880 to 1910
2. 30-years of global warming from 1910 to 1940
3. 30-years of global cooling from 1940 to 1970
4. 30-years of global warming from 1970 to 2000