• Thesis title: Hyflex
• Type of project: Research
• Event: 2022

The development of hydrogen as an alternative to hydrocarbons is part of a move to decarbonize human activities. This transition offers major advantages, such as reduced methane emissions, support for reindustrialization and greater mobilization for the climate. However, it is accompanied by environmental risks, notably hydrogen leakage, which amplifies the greenhouse effect, increases tropospheric ozone pollution and damages the ozone layer. On a socio-political level, issues such as conflicts of use, lack of transparency and financial and health risks must also be taken into account.

A multi-disciplinary research program is exploring these benefits and risks, drawing on the environmental and social sciences. The aim is to better understand the interactions between these factors, their influence on project design and their acceptability in a context of contradictory forces and changing opportunities.

• Thesis title: Projet trajectoires
• Type of project: Research
• Event: 2024

The TRAJECTOIRES project focuses on urban wastelands in the context of ecological and social transitions. It aims to understand their multifunctionality and their role in the city of tomorrow. Brownfields are often perceived as building sites, yet they present both ecological (biodiversity, limiting heat islands) and social (nature areas, ecological corridors) challenges.

As part of a reflection on land sobriety and new development policies (such as the "Zero Net Artificialization" law), this interdisciplinary project explores :

• The ecological and social roles of wasteland: biodiversity, ecosystem services, urban uses.
• Possible trajectories: rehabilitation, conservation, or mixed uses, for a livable and resilient city.

Using Marseille as an example, the program proposes an approach integrating urban planning, geography, ecology and social sciences to analyze and develop these spaces in the collective interest.