#AskFedi
Regarding the law that air holds 7% more water per 1°C warming.
Where does it come from? Does it empty the #ocean and lower #sealevel ?
(Water does evaporate from the soil and plants on land as well. But most of the warmer, water-hungry air is over oceans so most of the additional evaporation occurs there.)
Where does it go, all the additional water in the air? Does it fill the whole troposphere or only up to, dunno, 5km or something?
(Water is lighter than the molecules that normally make up the air, O2 and N2. Astonishing to me. But true.)
And also, I can't seem to find a CO2-equivalent global warming potential of tropospheric water vapour. Isn't it a greenhouse gas, too?
Grateful for your input!
This toot was inspired by https://www.theguardian.com/environment/article/2024/jul/15/climate-crisis-making-days-longer-study
#climate #physics #atmosphere #troposphere