Urban biodiversity in action: How cities are building resilient, nature-inclusive communities in the North Sea Region

Urban biodiversity in action: How cities are building resilient, nature-inclusive communities in the North Sea Region - IUCN

people sitting and standing in a greenspace — Representatives from the pilots cities and knowledge institutions discussing project implementation and sharing lessons learned in Aahus, Denmark (IUCN)

In the face of escalating climate risks and biodiversity loss, European cities are rethinking their relationship with nature, understanding it as a vital partner in building healthier, more resilient urban environments. As part of the Biodiverse Cities Interreg initiative, five municipalities across the North Sea region are showing what it means to embed biodiversity into the centre of urban planning, while another four municipalities are replicating their solutions.

This work comes at a crucial time. Urban landscapes are both drivers and victims of biodiversity loss, yet biodiversity is still too often sidelined in city strategies, and this represents a missed opportunity. In this context, Nature-based solutions (NbS) not only support species and ecosystems, but can also deliver climate protection, public health benefits, and social equity. By providing multiple benefits, NbS represent a powerful set of tools for cities to address increasingly complex environmental and societal challenges, while safeguarding species and their habitats.

As the stakes build, so do the benefits

Integrating biodiversity into urban development is not just good for insects or parks. It is essential to citizens’ safety and wellbeing. Biodiverse green spaces help regulate temperature, reduce flood risk, and support mental and physical health with impacts ranging from reduced stress after listening to birdsong¹ to strengthening children’s immune systems, which are shaped by early exposure to microbial diversity². High-quality green areas also enhance air quality, reduce noise pollution, and increase opportunities for community building and social cohesion.

Yet in cities where land is scarce and pressure is high, space for biodiversity needs to be actively embedded into the urban fabric. That is exactly what the cities in the Biodiverse Cities project are doing – each in their own way, tailored to their local contexts.