A new entry into the IFRF Events Calendar this week is the Eleventh Conference on Energy for a Clean Environment – CLEAN AIR 2011, which will take place at the Instituto Superior Técnico in Lisbon, Portugal from 5-8 July 2011. This conference is organized by Dr. João Luís Toste Azevedo of the Instituto Superior Técnico, Prof. Roman Weber from Clausthal (Germany) and Prof. Leonardo Tognotti from Pisa (Italy). See the link for more….