I was a meteorology major in my first year of college. I remember learning that water vapor was a lot more potent as a greenhouse gas then carbon dioxide was.
My question is...
Since hydrogen cars emit water vapor, aren't they doing more damage to the environment than regular gasoline cars? This can't be true because someone would have said something about it already. Anyone have any thoughts?
From Wikipedia...
"Water vapor is a natural greenhouse gas and accounts for the largest percentage of the greenhouse effect." http://en.wikipedia.org/wiki/Greenhouse_gas
I'm all for plug-in electric cars and solar/wind powered homes.