By observation haggy I think that water vapour is a more potent greenhouse gas.
A couple of days ago was in the heart of cotton country near St George in southern Qld.
It was a centre of a high pressure system, lack of moisture, but same .004% of CO2.
The air was icy at night - no cloud holding any day heat in.
Big season for cotton, dozens of trucks transporting the big round bales.
