CO? is a well-mixed gas and is found at all elevations of the atmosphere, including the stratosphere and above. H?O on the other hand is NOT a well-mixed gas and is almost entirely found in the troposphere. H?O precipitates and/or turns to tiny ice crystals before it can rise much above 20,000 feet. You've a great deal to learn before you get a single clue.
The effects of clouds on warming are... complicated. Some types of clouds cause warming, overall, while others cause cooling, and we're not sure yet what kinds of clouds there will tend to be more of in a warming world.
But let's assume for the moment that clouds are a negative feedback. That is, that they cause cooling in a warming world.
That *doesn't* mean that the world will be cooler than it would have been *without* the warming. It just means that the clouds will, in effect, *cancel out* some of the warming. For example, the world warms 2 degrees from CO2, but the clouds cause 1 degree of cooling, so the world only actually warms 1 degree.
And the water vapor from burning fossil fuels is irrelevant in terms of climate. Except in the few areas that are extremely arid, you could spray water in the air all day, and in a week there would be no more humidity than if you hadn't done it. So the water from fossil fuels is equally irrelevant, though it might in theory have a tiny effect on ocean levels.
Temperature controls humidity, in almost all situations. If the air is warm enough that it can hold more water, then more water will evaporate in any place where there's free water (lakes, oceans, swamps, et cetera). If the air is cold enough that it has more water than it can hold, that water will fall as rain, snow, or some other precipitation (including dew or frost, that's why weather people will talk about the "dew point", that's the temperature at which you'll have dew because the air will be saturated with water). And this change usually takes place in minutes to hours, not the months or years that you would need for any real effect from water put in the air by burning fossil fuels or the like.
I am trying to envision how a warmer planet, with more evaporation from an increased oceanic volume, leads to fewer clouds? Some areas will undoubtedly have fewer clouds while others have increased cloud cover. Which will have the majority, who knows at this point in time? It will be a matter of waiting to observe which it will be, not rely upon models and speculation ahead of time.
The other huge question that few seem willing to investigate is whether or not the reality of all of this will be a near future climate re-balancing scenario in which we return to much colder climate in order to offset the recent global warm up. The cooling of oceanic water would allow for higher concentrations of CO2 to be absorbed into the water and stored there.
More clouds is just one of many effects that have to be taken into account to try to predict what changes the added CO2 will cause. The CO2 all by itself has a very small effect, so all the doom and gloom is coming from various predictions of the secondary effects. It may be a world wide disaster larger than any in history, or it may be no big deal. But do not let that fool you into thinking there will be no effect of any kind at all. So, do you feel lucky? (That it will not be a disaster and we should keep polluting with no worries?)
All non solids that rise into the atmosphere separate into nothingness so the suns rays can warm earth while it rotates to grow plants that grow food and oxygen so all species survive. Global warming ended in 2012. The weather is like it was 36-1/2 years ago before Global Warming in the 1970's. Get used to it. Mike
Do you really think that all the CO2 in the air is below cloudtop level?
You could check some measurements, or learn something about the mixing of gasses.
No, what you are describing is a negative feedback, but it is not going to make things cooler than before.
The other possibility is that you have a warmer world with larger variation, thus making it possible for colder extremes than before. However, the current blizzards and vortices are not evidence of that, as there is no theory that says CO2 increases variation without making things warmer first.
It could but not in the manner you think. if the global warming pandemic continues or gets worse it could theoretically melt the ice caps causing a plethora of water building up and eventually evaporating causeing massive cloud cover which in turn could cause lower temperatures
Global warming leads to fewer clouds, not more clouds.
http://www.climate4you.com/ClimateAndClo...
Low cloud cover vs time
http://www.climate4you.com/images/CloudC...
The weight of molecules is irrelevant. Does your coffee/cream mixture separate? The atmosphere is completely mixed. As for clouds, they also keep nights warm, overall they are a positive feedback.
the air. Water vapor is lighter than CO2 and is located above CO2 in the atmosphere where they cool and condense into clouds. Clouds block out sunlight thereby cooling the world.
water vapor itself is a greenhouse gas.
Because you can't tax water vapor
