Dying plastics: a geography of waste

27 October | Cycle "Plastics: not-so-fantastic poisons"
Tuesday
27
October
2026
6:30 pm
8:30 pm
Bannière Octobre
What do plastic waste streams reveal about our societal choices? Behind the promise of recycling, the management of end-of-life plastics reveals deep tensions between environmental imperatives, industrial interests and political decisions.

- Event held in French -

As waste volumes rise, a question arises: what does the way we handle plastics reveal about our models of production, consumption and regulation?

Plastic waste now serves as a prime lens through which to view contemporary transformations. By tracing its flows, its material properties and the social dynamics that govern its circulation, Jeanne Perez highlights the trade-offs that shape waste management systems and the limitations of current responses. Why does recycling occupy such a central place in public policy? What effects does this hyper-focus on the end of the life cycle produce? What alternatives can be considered in the face of the difficulties in closing the loop?

This event aims to open up a discussion on recycling mechanisms, the organisation of the sector and the collective choices that currently guide plastic management.

The session will bring together Jeanne Perez and Henri Bourgeois Costa, Director of Public Affairs at the Tara Ocean Foundation and co-designer of the cycle, and will be moderated by a science journalist.

Following the discussion, you will have the opportunity to ask our guests any questions you may have. 

About the speakers

Jeanne Perez is a postdoctoral researcher at the Espaces et Sociétés (ESO, CNRS) laboratory at Le Mans University. Her research focuses on plastics and plastic waste, using an interdisciplinary approach that combines environmental chemistry and social geography. It falls within the field of rudology (the study of waste), which has been developed notably in Le Mans, and analyses the environmental, social and territorial issues associated with plastics.

Jeanne Perez
© Jeanne Perez

Henri Bourgeois Costa is a specialist in ecosystem geography. After working for NGOs since 1997, he developed expertise in water, biodiversity and the industrial environment (eco-design, plastics processing, recovery). Since 2019, he has been working at the Tara Ocean Foundation, where he advocates for the circular economy, particularly with regard to plastics and toxic substances, and raises these issues at the international level in the context of UN negotiations.

Henri-Bourgeois-Costa
© DR
About the series ‘Plastics: a systemic poison’

Organised in partnership with the Tara Ocean Foundation, the series ‘Plastics: a systemic poison’ explores a form of pollution that has become a global issue. Since the 1970s, scientific research has revealed the scale of the problem: from the oceans to the mountains, invisible microplastics are entering our bodies and disrupting ecosystems. The humanities and social sciences complement this picture by analysing the economic and social mechanisms underpinning our dependence on plastics.

As the seventh round of negotiations for an international treaty begins this year, these meetings bring together researchers and civil society to pool knowledge and inform public policy decisions. The aim: to collectively rethink our relationship with plastics and the environment.

→ Discover the series

Published at 2 February 2026