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 "Resilience.org". His blog in English is called "Cassandra's legacy". His most recent book in English Extracted: How the Quest for Global Mining Wealth is Plundering the Planet (Chelsea Green”, 2014. He is also the author of The Limits to Growth Revisited (Springer 2011).