The goal of the action weeks: to inspire people to appreciate the inestimable value of biodiversity—and to show them that everyone can make a difference, whether on their balcony, in their garden, or right in the heart of the city.

For the third time, Mainz will serve as a stage for nature and civic engagement during these action weeks. In numerous neighborhoods, exciting events centered on the conservation and promotion of biodiversity invite residents to get involved. Whether through guided tours, workshops, field trips, readings, or artistic activities—residents of all ages can experience the diversity of local nature up close and rediscover ecological connections.

Janina Steinkrüger, Head of the Environmental Department, on Biodiversity Week 2026:
“The consequences of the extinction of animal and plant species are often not apparent at first glance. As a result, the immense scale of the biodiversity crisis is, unfortunately, often underestimated. This makes it all the more important that we realize that the ongoing loss of biodiversity is primarily caused by our way of life and affects us all. Depleted soils and overfished oceans, for example, are already threatening the security of food production today. Nature conservation is particularly important in cities, as biodiversity in urban areas can be higher than in heavily farmed surrounding regions. Biodiversity Week draws our attention in a positive way to the issue of biodiversity, and I thank all stakeholders for their commitment to our environment.”