The following essential guidebook offers detailed information about the measurement and calculation of the mandatory indicators for each of the five areas covered by the Green City Accord: air, water, nature & biodiversity, waste & circular economy, and noise.

The Green City Accord encourages best practices and the sharing of knowledge between signatory cities across Europe. This publication provides a snapshot of some of the many interesting projects and initiatives that signatories have organised in one or more of the five Green City Accord core areas.