Marion FETET
Research Fellow – Local authorities, Public Finance, Green BudgetingMarion Fetet holds a Master’s degree in Public Policy Management and joined I4CE in 2019. She specializes in budgetary and financing issues related to the climate transition at the local government level.
At I4CE, Marion has contributed to the development and dissemination of the “green budgeting” concept, in particular through the creation of a methodology at the local level. A green budget helps assess the environmental impact of public spending, thereby identifying critical issues that should be prioritized in public debate.
She has also worked on a global assessment of carbon taxes and emissions trading systems.
Last contributions
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22/04/2025
Blog post
Planning for the cost of climate action: a practical guide for local governments
Local authorities play a leading role in ecological planning. As major contributors to public investment they have core responsibilities that can significantly accelerate the transition, such as expanding public transport networks or retrofitting public buildings for energy efficiency. According to I4CE, in France, local authorities in France need to double their investments in decarbonization by 2030 -without even accounting for future adaptation costs. -
22/11/2023
Blog post
Carbon prices: the winds of change
After several years of strong growth, the revenue generated by carbon pricing mechanisms (carbon taxes or markets) worldwide, as reported in our 2023 edition of the Global Carbon Accounts, stabilized at nearly USD 100 billion. This stabilization could not be more deceptive. The future has rarely been so uncertain for carbon prices, caught between very strong opposing trends, and the next two years could mark a major turning point, for good or bad, for the use of these climate policy instruments worldwide. -
22/11/2023
Climate Brief
Global carbon accounts in 2023
What are the carbon taxes and markets around the world, the range of carbon prices, the revenues generated, the emissions covered by these mechanisms? Find the answers to these questions, and many more, in the new edition of the Global Carbon Accounts from I4CE. -
12/10/2023
Climate Report
Green Budgeting: feedback from local authorities
Time to take stock, 4 years after the first experiments Report only available in French A momentum for green budgeting is gaining ground within local authorities: In the space of four years, around a hundred of them have embarked on the green budgeting process or have plans to do so. This includes nearly […]
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25/11/2022
Climate Report
Climate: how French local authorities are financing their investments?
According to I4CE's research, to meet European and international commitments made by France to carbon neutrality, French local authorities need to more than double their annual climate-related investments (from €5.5 billion to €12 billion annually), to around 20% of their current total capital expenditure. -
21/09/2022
Climate Brief
Global carbon accounts in 2022
Carbon revenues were nearly USD 100 billion in 2021. This represents a more than 80% increase year-on-year (USD 53.1 billion in 2020, USD 97.7 billion in 2021). This increase is largely driven by the rise in allowance prices on the European carbon market, which exceeded the symbolic threshold of EUR 100/tCO2 for the first time in the summer of 2022. -
21/10/2021
Climate Report
Global Carbon Accounts in 2021
Explicit carbon pricing systems - a tax or a carbon market - continue to develop around the world. In the 2021 edition of its Global Carbon Accounts, I4CE presents the main trends and provides an overview of these public policies ... -
15/03/2021
Climate Report
Climate assessment of local authority budgets: methodological guide
For local governments, it is when expenditures are debated that it is possible to question them and to channel them towards the climate transition. That’s why I4CE and its partners co-constructed a common and shared methodology to assess a local budget according climate issues. -
15/03/2021
Climate Report
Climate assessment of local authority budgets: adaptation appendix
For local governments, it is when expenditures are debated that it is possible to question them and to channel them towards the climate transition. That’s why I4CE and its partners co-constructed a common and shared methodology to assess a local budget according climate issues. -
15/03/2021
Climate Report
Climate assessment of local authority budgets: mitigation appendix
For local governments, it is when expenditures are debated that it is possible to question them and to channel them towards the climate transition. That’s why I4CE and its partners co-constructed a common and shared methodology to assess a local budget according climate issues. -
02/12/2020
Climate Report
Climate assessment of local authority budgets: synthesis
I4CE and its partners make available, free of charge, to interested local authorities a methodology to evaluate local budget under the prism of climate issues. It is a transposition of Green Budgeting approaches, such as the one carried out on national French budget, to the budgets of local authorities. -
05/10/2020
Blog post
France’s Green Budget: What’s Next ?
A few days after the publication of France's 2021 budget bill, and before any debates in parliament, the government released an environmental assessment of it. This assessment, often referred to as the "green budget", is an important step forward for the transparency of public action, according to Marion Fetet and Sébastien Postic from I4CE. Nevertheless, they suggest improvements to be made to the scope of the budget analyzed or to the classification of certain expenditures. And they call for making the green budget a real tool for greening the budget. -
14/05/2020
Climate Brief
Global Carbon Account in 2020
Explicit carbon pricing systems - a tax or a carbon market - continue to develop around the world. In the 2020 edition of its Global Carbon Accounts, I4CE presents the main trends and provides an overview of these public policies: the countries that have adopted them, the sectors covered, the price levels, the revenues generated and what is being done with them. Find all this information in graphics. -
01/10/2019
Climate Report
A first 360-degree climate assessment of France’s State budget
The vote on the state budget is a key moment in the fight against climate change. In France,more than 250 budget measures have been identified: expenditures, tax exemptions, taxes, all of which have a significant influence, upward or downward, on national greenhouse gas emissions. 250 reasons to keep a close eye on the state budget. […]