GNSA - Groupe National de Surveillance des Arbres is a non-profit association dedicated to the protection of trees in both urban and rural environments. As an organization recognized as being of public interest, GNSA actively works towards sustainable development, environmental education, and the preservation of our natural heritage. Trees play a vital role in maintaining the health of our surroundings and the resilience of our territories in the face of global warming and biodiversity loss.

However, due to various development projects and a lack of awareness about their ecosystemic role, many trees are unfortunately lost each year, leading to public misunderstandings and local protests. GNSA was formed to address these issues and empower citizens faced with the negative attitudes of decision-makers. With our roots spreading throughout France, GNSA establishes local groups to extend our reach and influence.

Furthermore, we keep the public informed through our news updates, alerts, and petitions. Our association is also involved in advocacy efforts and has published a book highlighting the importance of tree conservation. If you share our vision and desire to protect our natural heritage, you can get involved by supporting our organization or alerting us to any tree-related concerns.

Together, we can make a difference and safeguard our trees for future generations