YMMV (quite literally ;), but whether once or twice the landmass production it's much too much to be practical, I agree with you Jed. Unless we found a way to use seaweeds and convert supertankers to seaweed harvesters ;)

Michel

----- Original Message ----- From: "Jed Rothwell" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, March 10, 2006 12:24 AM
Subject: Re: Farrell responds to Pimentel regarding ethanol


Michel Jullian wrote:

I heard that the limit on biofuels is that they would require devoting the entirety of our agricultural surfaces to the corresponding cultivations if we wanted to run all our vehicles on them.

I have discussed that issue here before. Actually, it would take much more than "the entirety of our agricultural surfaces" in the U.S. It would take roughly twice as much as the entire landmass produces -- 2 times all biomass from all dry land.

Biomass can never supply more than a few percent of our energy, and every calorie of biomass we use condemns someone outside the United States to malnutrition and starvation.

- Jed



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