Since someone recently brought up the surprisingly large numbers of people on this site with scientific background, I just thought I'd pop in and share this (pdf) fascinating (albeit somewhat dated) study I recently found on energy sources, and our dependency on them/the dangers of continuing their use. I especially liked the part comparing potential power generation at current consumption, with the dramatic difference between oil (50 years), coal (200 years), uranium dioxide breeder reactors (3000 years), and fusion reactors (150 billion years), which is about 100 time longer than the postulated life of the sun! All in all, it does seem to support the conclusion that deuterium/tritium reactors are the best, cheapest, and cleanest method of power generation that could ever become available. Just throwing this out there to see what you all think.