La comptabilité des émissions de gaz à effet de serre par enjeu : un outil d'analyse des impacts du changement climatique sur les activités d'une banque de financement et d'investissement

The PhD thesis is a contribution to the definition of a new banking risk related to the economic impacts of climate change. The climate change will impact the clients of a corporate and investment bank and will have consequences on its strategy and the composition of its business portfolio. Nevertheless, uncertainties remain on the economic impacts of climate change and create a new risk for the banks: the carbon risk. The quantification of “GreenHouse Gases (GHG) emissions induced” by the businesses of the bank’s clients is a first step required for managing this new risk. After having studied the various models of carbon accounting, this PhD thesis proposes an analysis tool based on a new form of carbon accounting by allocating the GHG emissions to the economic agents in accordance with their ability to reduce it: “the accounting by issue”. This tool allows mapping sectorally and geographically of the “GHG emissions induced” by a financing and investment portfolio (in debt and equity capital).