tom ring said:
> What most people don't seem to understand, is we have to get that energy
> from
> somewhere.  The only practical large scale sources right now are oil,
> coal,
> relatives of the previous 2, hydro, and nuclear.  Of the "clean"
> alternatives,
> wind and solar will never cut it in the near future, and probably not ever
> due
> to the low power density of what they run off from, and hydro is maxed
> out, and
> has it's own environmental problems.
>
> And soybeans, alcohol, etc don't count, 'cause they take about as much
> energy
> to produce them as they deliver.
>
> So no matter what fuel you run in your vehicle, it's not going to be
> derived
> from anything new in your lifetime.  Bet you lunch.
>
> tom

I wouldn't be so sure - thermal depolymerization seems to be a strong
possibility...

<http://home.everestkc.net/tasir/CWT/Depolymerization.htm>
<http://www.spiritofmaat.com/announce/newoil.htm>

Supposedly CWT has a self-powering process, as much as 85% of the energy
in comes out as fuel.  Discover Magazine had a article on it in May '03.

<http://www.changingworldtech.com/>

I see changes in 10 years - if the big oil companies do not stifle the
technology.

Depolymerization combined with cleaner & hotter engines (ceramic?
turbine?) seems likely for the future.

Ryan