Richard LOIRET  began a thesis under the direction of Martin O’Connor within REEDS in 2010, centered on ecological indicators related to territorial areas; more particularly on the "Ecological Balance" (a reformulation of the ecological footprint (GFN) and its two basic components, the environmental pressure (the footprint in Itself) and the biocapacity), which is a new thermodynamic concept of measuring and comparing, on one hand the living, and on the other hand the environmental pressure. And a concept which, finally, should allow to "revisit" Ecodevelopment. Keywords concerning his research: Ecological balance and biodiversity, exergy of living, distance to equilibrium, Biogeochimistry, Biosphere and Ecosphere, Material flows analysis (MFA) & I/O analysis, Material accounting, Physical economy and prospective model (MEPP). Richard has a Environmental Professional Master, and a Master in Organisation from the International Institute of Management of the Conservatoire National des Arts et Métiers (Cnam). Following a life as a professional consultant and engineer-in-chief in the environmental public arena, he was able to implement numerous courses (International Horticulture Group, World Bank, BAT European Commission, Regional Authorities and Regional Agency for the Environment PACA, voluntary and community organisations) in the private as well as public sphere.