Since 2008, the human species has become an urban species. More than half of the world’s population now lives in cities or large agglomerations.

Disconnected from nature, struggling with dangerous pollution that affects its heart, lung and hormonal health, urban life also brings its share of mental health problems: an increase in mood and anxiety disorders, depression or burn-out are the daily lives of millions of people. For disadvantaged populations, often deprived of trees and greenery, the risk is even greater. Children who have not spent their first ten years near green spaces have a 55% chance of developing mental illness in adulthood compared to others.

Science now knows that nature positively affects health, whether it is psychological or physical health. Thousands of studies published since the 1980s attest that human beings, who have spent most of their evolution in nature, cannot be separated from it without being harmed. Contact with nature reduces mortality, increases the immune system, memory, restores attention, repairs cognitive fatigue and stress, promotes productivity and creativity. The prevalence of 11 major categories of physiological diseases is at least 20% higher among people living in a less green environment than among those living in areas richer in natural elements.





Science knows all this. But what about the decision-makers?  Governments? Municipalities? Business leaders?

For nature to become a public and private health stake, for the use of nature to become the focus of tomorrow’s society, UDN wishes to create the Centre de Recherche sur l’Impact de la nature (CEDRE).  

It will be the first global centre entirely dedicated to studying the impacts of nature and disseminating scientific research while allowing individual experimentation with immersion in a preserved setting.

We therefore wish to acquire a natural domain in which we will welcome scientists from all disciplines, public and private decision-makers, and responsible individuals to gradually implement a society that integrates nature and its impact. The profits from our activities are entirely dedicated to this project.

CEDRE’s activities :

  • Research
  • Reports
  • Case Studies
  • Information files on policies and practices
  • Books and special publications
  • Databases