Abstract
The concepts related to sustainability and social progress contained in a paper published in Salud Colectiva by Goñi and Goin are discussed and questioned. Alternative views are then discussed, and the relation between economic growth and progress in health conditions (as measured by the under 5 mortality rate) in Argentina in the years 1960-2003 is briefly analyzed. The paper concludes by discussing recent reports on scientific forecasts of the effects of climate change and some political conflicts triggered by those forecasts.