La collapsologie est un courant de pensée transdisciplinaire apparu dans les années 2010 qui envisage les risques d’un effondrement de la civilisation industrielle et ses conséquences.
En France, l’étude d’un possible effondrement de la civilisation « thermo-industrielle » est initiée par l’Institut Momentum co-fondé par Yves Cochet et Agnès Sinaï. Ces derniers définissent l’effondrement comme « le processus irréversible à l’issue duquel les besoins de base (eau, alimentation, logement, habillement, énergie, etc.) ne sont plus fournis (à un coût raisonnable) à une majorité de la population par des services encadrés par la loi».
Energy return on investment (EROI) is a biophysical and ecological economics concept that is useful to think about how organisms, ecosystems and societies must obtain enough surplus energy returned from energy gathering activities to live, reproduce, and thrive. EROI can help us overcome the false dualism between nature and society. EROI is a useful metric for economics because it is based on immutable physical laws rather than sometimes arbitrary human preferences. It is essential for assessing useful power, energy trade-offs, efficiencies (and inefficiencies), resource depletion trends, resource quality, and surplus potentials of different fuels and technologies that power, or might power, our socio-economic systems. Apparent inconsistencies in the literature can generally be reduced or eliminated by paying careful attention and explicitly stating boundaries and definitions. We argue that proper use of EROI is critical to understand the interconnections among the environment, energy, and socio-economic deve
