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.


Unka George
(George McDuffee)

What a country calls its vital economic interests are not
the things which enable its citizens to live, but the things
which enable it to make war. Petrol is more likely than wheat
to be a cause of international conflict.
Simone Weil (1909-43), French philosopher, mystic.
«The Power of Words», in Nouveaux Cahiers (1 and 15 April 1937;
repr. in Selected Essays, ed. by Richard Rees, 1962)