Capt. Geoffrey Thorpe wrote:
"Dan G" wrote in message
ups.com...
...
Bottom line: hybrids get the best gas mileage at present. Diesels are
close behind and may always be a bit cheaper to buy, but not quite as
good for mileage, and also have issues with pollution. Ultimately -
decades ahead - hydrogen is the future. Where the energy to produce
the hydrogen comes from is a whole other ball game :-).


If we don't have the energy to extract the hydrogen, then what makes it "the
future"? I've never understood that angle - "we will need hydrogen for when
we run out of oil" - but we need oil to extract the hygrogen, eh?

Seems to me like we need "something" as an energy source for when we run out
of oil, and what kind of fuel one would generate for transportation would
depend a lot on what that "something" is. Might be H2, very possibly won't.

Yes! Kind of like the E85 push, the big boosters never bother to
mention that it takes nearly as much energy to make the ethanol as you
get out, meanwhile driving up corn (and beef) prices, and any other crop
that isn't planted so that corn can be.
I wouldn't be surprised if battery technology develops so thoroughly
that fuel cells (i.e. H2) never takes off.
Look at the Antares for example :-)


Shawn