In article
<b9361ac7-1476-4bb2-a1ee-5270ece5c618@p25g2000hsf.googlegroups.com>,
virig <virginia.wats@gmail.com> wrote:

> Its cheap and abundant...so what are we waiting for?
> http://carwithwater.googlepages.com/fuel_cell_cars

Practical fuel cell technology?

Hmmm. Imagine the dewpoint in American cities with hundreds of
thousands of pounds of water vapor being poured into the air each day.
And don't forget that water vapor is also a greenhouse gas. Imagine
driving on highways in January in Minneapolis at -30F with cars spewing
water vapor onto the roads, coating them in black ice.

Hydrogen is a no-workable technology on many fronts. "Harmless water
vapor" is a great sound bite but rife with practical problems.