Ugo Bardi teaches physical chemistry at the University of Florence, in Italy. He is interested in resource depletion, system dynamics modeling, climate science and renewable energy. He is member of the scientific committee of ASPO (Association for the study of peak oil) and regular contributor of "The Oil Drum" and "Energy Bulletin". His blog in English is called "Cassandra's legacy". His most recent book in English is "The Limits to Growth Revisited" (Springer 2011). He is preparing a new book titled "Emptying the Earth" sponsored by the Club of Rome that should appear by the end of 2012.