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bearsagainstevil Says:

Oct 3, 2007 - very interesting

RichCrisler Says:

Nov 29, 2007 - This is the smartest man I have ever herd and he makes alot of since.

InTheSticks1881 Says:

Apr 13, 2008 - Very interesting!

peakmoment Says:

Apr 14, 2008 - David sidestepped my questions comparing gasoline's energy-density with ethanol. That's the crux of all the biofuels: we have to grow/produce far more of it to get the same energy equivalent of gasoline. And scientist James Lovelock says a sane response to global climate change would be NOT to put any more land into production. We need to reforest (to sequester carbon), not till marginal lands.

ufoengines Says:

Jul 15, 2008 - This brings back the 1970's for me. I remember more than on book at that time on how to brew up fuel from corn squeezings. Now they say the feds will pay you cash money to doing this! COOL!

hardt67 Says:

Jul 20, 2008 - Well it seems to be working for Brazil. That's a big reason their economy is one of the strongest right now.

heyerstandards Says:

Jul 21, 2008 - He goes through it in the book. Alcohol has a lower BTU content than gasoline. Fortunately when running through an engine, BTU is not an appropriate measure of efficiency. Alcohol's other properties (latent heat, octane, etc.) make it more comparable to gasoline.

alli4joe Says:

Aug 4, 2008 - can any one tell me how much land would be required to fuel every car in the world, i seem to remember in roman times that eygypt was very fertile till they over cropped it

peakmoment Says:

Aug 5, 2008 - I can't give you numbers for the world, but for the U.S., it would take four times the arable land we have to fuel our cars. That means no land used to grow food. Obviously, we can't keep paving over arable land. We will need to have far more efficient transportation -- which means electric -- trains, buses, and fewer cars.

zstowasser Says:

Aug 15, 2008 - what about using algae and kelp grown in our oceans? He mentioned this in another one of his interviews. I linked it on my blog along with this video. infopatriots(dot)org

fieryangel123 Says:

Sep 6, 2008 - Thanks for sharing Tommy i found this vid very interesting. XX Kay

Nikki8La8La Says:

Sep 7, 2008 - This will never happen until the overworld can allows and controles.Buzz