2012-06-01 Doing one’s good deed regarding climate change : what is the impact of individual actions? Acting individually
2011-11-01 The limits to growth – Donella Meadows, Dennis Meadows, Jørgen Randers and Behrens William W. III – 1972 Societies
2004-05-03 A little speech given during the presentation of the movie “The Day After” to the french press