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notmynose t1_iybzf8x wrote

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.

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CMDR_kamikazze OP t1_iyc0219 wrote

Well yes, but imagine all of the jet aviation to switch to hydrogen engines. I doubt the sheer amounts of water vapor introduced into the stratosphere as a result of that will do any better than current amounts of CO2 do. The greenhouse effect could even be worse. The effects of water vapor emissions should really be researched and compared to effects of CO2 emissions before we will put too much time and effort in hydrogen tech.

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notmynose t1_iycah8m wrote

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.

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