notmynose
notmynose t1_iybzf8x wrote
Reply to People who are promoting hydrogen as a green fuel always forget what water vapor is one of the most powerful greenhouse gases. by CMDR_kamikazze
Crazy thing about water. It condenses. Methane and co2 don't.
E: although stratospheric emission of water vapour is a different story. Yes, this does need more attention.
notmynose t1_iycah8m wrote
Reply to comment by CMDR_kamikazze in People who are promoting hydrogen as a green fuel always forget what water vapor is one of the most powerful greenhouse gases. by CMDR_kamikazze
Actually you make fair points here. Cloud formation in the stratosphere has an negative impact on both the ozone layer and on surface temperatures. I retract my objections.