[Thanks for the catch! Would the guy who caught this on 8-26-08 resend his message to my account? I'm so groggy I deleted the message while I was actually trying to cut and paste it into my souvenier file. Cheers!]
I'm keeping this version up to preserve the discussions in the comments.
Part 5 of Dr. Albert A. Bartlett's presentation on "Arithmetic, Population, and Energy."