"J. Clarke" wrote in message
...
F. George McDuffee wrote:

On Sun, 12 Mar 2006 22:20:06 -0500, "ATP*"
wrote:
snip
But WRT soy-based diesel, there is a large energy expenditure,
although not as bad as ethanol, which by some estimates costs more in
BTUs
to make than it delivers.
snip
This is called entropy or the first law of thermodynamics. You
can't have a perpetual motion machine, i.e. create energy. Thus
this argument [mainly used by people that don't want a solution]
is specious.

It's specious _only_ if the people presenting it _include_ the solar input
which would otherwise go to waste in their calculation of the energy cost.
Do they do this?

No.