City Biodiversity Index FAQs

Do you have any questions about the CBI for us? Check out our Frequently Asked Questions below, or email us at

The City Biodiversity Index (CBI) - or the Singapore Index on Cities’ Biodiversity (SI) - is a self-assessment tool for cities to evaluate and monitor the progress of their biodiversity conservation efforts against their own individual baselines, which is currently in the form of a handbook.

You can download the CBI handbook here. The CBI tool on this site is a digitized version of the handbook.

The CBI self-assessment tool enables cities to determine a baseline of biodiversity and nature in their city, which then provides cities with useful data to help them make commitments and take action for nature, and particularly on the CitiesWithNature Action Platform