French local authorities, like cities and metropolises, now want to be able to identify within their budgets what contributes to the ecological transition, and to do so, this they need a shared framework for analysing their budget.

Such an assessment will enable them to respond to citizens’ demands for budget transparency, to better manage their budget decisions systematically through a climate prism and to more easily identify the expenditures that could be be financed by green bonds.

Some cities and metropolises have begun to develop this approach internally, but they are expressing the need to see the emergence of a shared framework for analysis – at a French, European or global level – based on an independent expertise.


To meet these demands, I4CE is working on the co-construction of a climate budget assessment framework for local authorities in collaboration with five French metropolises and cities, plus the national environmental agency (Ademe), the Association of French Mayors, Climate KIC and the association of large cities (France Urbaine).  This project will be based on the work carried out by I4CE at the French national level and on the expertise of local authorities that have already begun to reflect on this exercise.

The project will lead to the establishment of a climate assessment framework for local authority budgets that is transparent, public and widely shared through different networks in France, but also potentially at the European or even global level (C40).

This assessment framework will aim to analyse a local authority’s entire budget. It will make it possible to assess for each budget line whether it is climate-friendly (“green”), neutral (“grey”) or climate-damaging (“brown”).


The cities and metropolises associated with the project are the metropolis of Lille, the metropolis of the Greater Lyon, the metropolis of Strasbourg, the city of Paris and the city of Lille. In addition, France Urbaine, the Association of French Mayors (AMF), Climate KIC and Ademe are also partners of the project. 


September 2019 – Spring 2020