2011-11-01 The limits to growth – Donella Meadows, Dennis Meadows, Jørgen Randers and Behrens William W. III – 1972 Societies
2012-06-01 Doing one’s good deed regarding climate change : what is the impact of individual actions? Acting individually
2004-03-30 Renovating ancient housing, a widely unknown action possibility against climate change Acting collectively