[sionnsar]

“Hydrogen can be easily converted to electrical and mechanical energy without any production of carbon dioxide,”

But isn't water vapor an even bigger greenhouse gas?

[cookcounty]

But isn't water vapor an even bigger greenhouse gas?

Bingo!

[bmwcyle]

Did anyone figure the effect of all that new water vapor?

[Redcloak]

But isn't water vapor an even bigger greenhouse gas?

Shhhh!!! You'll spoil all the fun! 

[SteamShovel]

But isn't water vapor an even bigger greenhouse gas?

Details.....Why bother with them?

Actually, since water vapor comes and goes fairly readily by condensation and precipitation, my guess is, the water vapor content of the atmosphere on a global scale would remain relatively constant. However, on a local level, the effect would be to raise temperatures, like in a city around a major highway.

But you do raise a good point since the water vapor effect is a major player that dwarfs CO2, and so it is ignored simply because it would illustrate just how small the CO2 effect is (let alone the relatively small human portion of the CO2 effect).

[STD]

Yup, good ol’H2O vapor. We’ll have streets that clean themselves. Thats a great side effect that soon start cleansing the streets with the flow of water scouring old pollutants by burning hydrogen and releasing harmless water.

[STD]

Yup, good ol’H2O vapor. We’ll have streets that clean themselves. Thats a great side effect that soon start cleansing the streets with the flow of water scouring old pollutants by burning hydrogen and releasing harmless water.