Urban areas benefit from biodiversity by providing ecosystem services that improve human well-being, but rapid urbanization is harming these services. Protecting and restoring urban biodiversity can enhance the well-being of city dwellers. Current international conservation efforts focus on rural areas, neglecting urban conservation. Green infrastructure like parks can help green urban living. The study examines scientific practices for protecting urban ecosystem services and evaluates international legal instruments for biodiversity protection. The Aichi Targets may not be sufficient to safeguard urban ecosystem services effectively.