This data is collected through the CDP-ICLEI Unified Reporting System. When using this data, please cite both organisations using the following wording: ‘This data was collected in partnership by CDP and ICLEI - Local Governments for Sustainability’.

This dataset contains the full responses of publicly disclosing cities in 2021. The platform is still open and the dataset is updated daily to reflect new submissions.

To view the cities 2021 questionnaire guidance, including all questions asked to cities in 2021, visit https://www.cdp.net/en/guidance/guidance-for-cities.

For any questions, including guidance on how to reference this data in your own work, please contact cities@cdp.net.

Please note that this dataset may contain data from cities or, in some instances, groups of cities at different administrative levels. This includes metropolitan areas, combined authorities, and some regional councils.

When using the inventory data for aggregation, comparison and trend analysis, please note that the inventory data is based on non-verified self-reported city inputs. The reported inventory may not include all emission sources within the city boundary.