namnugenot wrote on Feb 21
st, 2014 at 11:06am:
Oh that is sooo super...except along with a lot of manufacturing that of polysilcon has been shiftng to China (about 40% in 2012) which has somewhat lower standards...you do understand the concept and implications of a global atmosphere...don't you? So piss in the pool is piss in the pool. You also realise how quickly world polysilicon production is increasing?
It's still minuscule in the scheme of things.
Now somewhere you said that water vapour accounts for 95% of the Greenhouse Effect, presumably with CO2 making the other 5%. So, for a doubling of CO2, we should get 0.7 degrees rise - but if water vapour accounts for 95% of the Greenhouse effect (where? - at ground level?) then the approximate transient climate sensitivity would be 0.7* 95/5 or around
13.3 degrees for a doubling of CO2. (We are not worthy). That doesn't take account of other greenhouse gases, including methane and N2O.
What are you, some kind of ultra-alarmist? Even the IPCC states that the transient climate sensitivity is only about 2. As a rough calculation, that makes water vapour responsible for 2/0.7 or 2.85 times the contribution of CO2(e). (but much less at higher altitudes, where it counts)
There are different figures quoted, but around 65 % is the generally accepted ratio, but that includes tropospheric ozone, methane , nitrous oxide etc in that figure for CO2-e.
At least that figure passes the reality check a lot better than 95%.