This doctoral project, in partnership with the engineering consulting firm Norda Stelo, focuses on the role of residual emissions neutralization in achieving carbon neutrality. It begins by quantifying neutralization needs using IPCC scenarios, in order to assess the magnitude of expected residual emissions across different scales and socio-economic contexts.

The project then aims to analyze and optimize neutralization solutions, including both technological approaches and nature-based options. The objective is to identify efficient combinations of solutions by considering their energy and material requirements, their environmental, economic, and social impacts, and the influence of geographic location. This regionalized analysis will make it possible to assess the relevance, feasibility, and long-term performance of neutralization pathways according to local conditions.

The assessment relies on prospective evaluation methods, particularly prospective life cycle assessment, to anticipate the future evolution of technologies, infrastructures, and environmental pressures. By integrating these elements, the project seeks to propose a decision-support framework that can guide public and private stakeholders in deploying neutralization solutions that are credible, context-appropriate, and sustainable.