2020
Cairn
Anaël Marrec, « L’Europe en transitions, Énergie, mobilité, communication, XIXe - XXe siècles (Yves Bouvier & Léonard Laborie (eds.), 2016) », Journal of Energy History, ID : 10670/1.2f4678...
Exploring the notion of an energy transition by way of specific energy calls for reconsidering the history of each energy individually, with gas being no exception over the long term. Three sequences have been observed since the early 19th C., which can be represented by three colors: black gas (or manufactured gas), blue gas (or natural gas), and green gas (or biogas). Each one demonstrates the instability of techniques, internal evolutions, and their integration within economic and social contexts, which were themselves in transition. Is it most appropriate to speak of a transition, a turning point, or a change?