![[The OCAPI program] An example of action-research for the transformation of food/excreta systems @ Online](https://sustainability-transitions.u-paris.fr/wp-content/uploads/sites/13/2023/09/simon-godfrey-dHo8nA6L3p0-unsplash-300x169.jpg)
The “Ecological challenges from a multidisciplinary perspective” seminar cycle of the EPOG+ Erasmus Mundus programme is jointly organised by the Earth Policy Centre of Université Paris Cité, the Institute for Environmental Transition of the Sorbonne University alliance and the “Sustainability and Transitions” doctoral school. All the sessions are given by world specialists in the field in question.

The major ecological and social crisis facing planet Earth, its territories, its living environments and its inhabitants, makes it necessary to address systemic, multidisciplinary and interdisciplinary issues relating to the environment.
Heightened awareness of the effects of human activities on the major balances of the biosphere, including climate change, the extinction of biodiversity, pollution, considerable pressure on natural resources and habitat dynamics, are giving rise to major political and social debates.
Major cycles such as water, carbon, nitrogen, major telluric or climatic phenomena and energy resources are all processes that need to be rethought in terms of their interactions with human activities.
The seminar on “The OCAPI program : an example of action-research for the transformation of food/excreta systems” is led by:
Fabien ESCULIER, researcher at École des Ponts ParisTech, LEESU