Very stimulating course: an eye-opener... Covers a broad spectrum of topics (this is both an advantage, because it offers variety, and a drawback, because some topics are covered too lightly). The biofuel aspects are particularly interesting, as well as the original discussion of the "energy for the bottom billions" topic. The course "manager", Dr. Mayfield, is very engaging, particularly through the weekly "office hour" session and the post-lecture interviews. The topic of the course potentially stimulates valuable forum discussions, too (when students do contribute to these).