dede2002 wrote:But the water cycle is a giant air conditioner, it condenses at altitude and evaporates below, in addition the clouds make the shade, difficult to compare that with the greenhouse effect of CO2 ... ?
The atmospheric water cycle (hydrosphere) has a very short parking time, just over a week compared to 1500 to 10000 years for glaciers.
The surfaces covered with water (70% of the surface of the globe) acts as a thermal buffer.
The oceans store in tropical areas the sum of 130 X10 to the power of 21 joules of energy over 100 days for only 100 m of water thickness!
In the context of global warming, therefore, there should be an accentuation of the phenomenon of evaporation, or parasol effect which should partially counteract warming .... via mechanical dissipation of energy, what is called cyclones. ..
If there is a consensus on the issue of global warming, it is quite different regarding the consequences of it.
Clouds play a particularly important role in the evolution of the climate (not only on the weather as we might think).
For those interested, there is the site
EUCLIPSE(European Union Cloud Intercomparison, Process Study & Evaluation Project), in order to realize the complexity of the thing ...
http://www.euclipse.eu/downloads/D1.2_euclipse_CALIPSO-PARASOL.pdf
"Engineering is sometimes about knowing when to stop" Charles De Gaulle.