2000-07-07 When wishing the withdrawal from nuclear energy, Germany is living in a wrong world Newspaper articles
2008-01-01 Will climate change get rapidely to a halt if we quickly decrease the emissions? Predicting the future
2002-10-27 A letter published in the reader’s section of “Le Monde” about Jeremy Rifkin and hydrogen Newspaper articles
2003-09-01 Shouldn’t we wait until we are totally sure of what’s going on before we do anything? Acting collectively
2011-11-01 The limits to growth – Donella Meadows, Dennis Meadows, Jørgen Randers and Behrens William W. III – 1972 Societies
2024-10-06 Acknowledgments …this website (but if you think you found one, I will be glad to know it !). My weak shoulders bear also the entire weight for any conclusion or opinion…