On 22 May 2007 10:24:05 -0700, st4s03 wrote:

Can you imagine the change that would occur in our atmosphere if
millions of vehicles around the world would be burning Hydrogen and
producing water vapor as a by-product?

You mean like the millions of vehicles that are burning gasoline and
producing both water and CO2 right now? Water is the nicest combustion
product possible.

This vapor will be condensed at
some point and most likely just when you want to fly. Over-developing
sky and increase precipitation.

Yes, if you import the hydrogen from Mars. If you get it from this
planet, you extract it from compounds (like, say, water) and when you
burn it it goes back into compounds. Like, say, water.

Furthermore, we have about fity-four million square miles of ocean
surface evaporating water into the atmosphere...

rj