The project focuses on the development of a book manuscript to be published by Routledge in 2022. Its aim is to provide a historical account of the development of a set of ideas referred to as ecological economic thought, i.e., a body of knowledge presenting substantial articulations between ecology and economics. The latter is described by means of analyses of flows and stocks of energy and matter in complex socio-ecological systems, including their implications for processes of social provisioning and cultural development. It entails a biophysical and (co-)evolutionary approach to economic science, as well as philosophical views on the relations between humans and their environment, such as nature as a source of value, moral aspects regarding natural resource distribution, and technological and behavioral transformations.