Energy is the single most critical challenge facing humanity worlwide. Within the next few decades we must find a new energy source that can provide at least 10 terawatts of clean, low-cost power. The answer to this can only come from revoulutionary breakthroughs in the physical sciences and engineering. Such breakthroughs will certainly happen. But can they be made soon enough to avoid the hard economic times, terrorism, war, and human suffering that will otherwise occur? Presented by Dr. Richard Smalley (1943-2005), 1996 Nobel Laureate in Chemistry and Professor of Chemistry and Physics at Rice University. Recorded July 8th, 2003.