How is water vapour a greenhouse gas? how is it the most imporant and lethal one?
Basically, a water molecule has many vibration modes that allow it to absorb infrared radiation; which is what it means to be a "greenhouse gas". It's linked to the structure of the molecule as a dipole.THis is not Hwk, it is school notes. What I mean is why is it a greenhouse gas what causes it to be one