Are you are a policy-maker or citizen wishing to better understand Nature Based Solutions? The Nature4Cities NBS explorer allows you to discover the world of NBS, your way. The main advantage is that it’s easy to handle even if you aren’t a specialist! Click on any urban challenge and discover the NBS able to address it, or let our methodology guide you towards more specific physical projects, actions or strategies that you could implement. For each NBS you’ll find images, a short description and an extensive factsheet giving more information on the chosen NBS.