“Energy Return on Energy Invested” that is. (corrected per comments; unfortunately we are stuck with the URL)
(As you will see, David has been rubbing me the wrong way on this. I am doubly appreciative of John’s coming to my defense because of the fascinating bubble chart on slide 22. Is the nuclear bubble right, though?)
Anyway, there’s more great stuff linked from Charles Hall’s home page. I don’t know why peak oil folks have such a bad sense of design, but anyway the stuff is good if you look past the nasty color scheme and slapdash layouts. Mostly I appreciate that Hall actually thinks about economics like a scientist. That’s as opposed to trying to look scientific, as the usual misguided application of thermodynamic entropy by other critics of classical economics do.