carbonn Climate Registry

The carbonn Climate Registry (cCR) is the world´s leading reporting platform to enhance transparency, accountability and credibility of climate action of local and subnational governments. It is designated as the central repository of the Compact of Mayors launched at the Climate Summit 2014.

What our Mayors say

"Today’s announcements – the Compact of Mayors, its standardized reporting process and public data portal carbonn Climate Registry, came out of an unprecedented collaboration among city networks."

Mayor Park Won-soon of Seoul, South Korea and a leader in ICLEI's Mayors network

"Via the new Compact, carbonn will reach out to a wider circle of governments to scale-up GHG emission reduction targets, increase focus on climate risks and adaptation plans and harmonize climate data with existing national, regional, global city reporting platforms."

Jürgen Nimptsch, Mayor of Bonn, Germany and host of carbonn and the ICLEI World Secretariat

Read the full text of the Compact of Mayors


23. September 2014

At the UN Climate Summit, the Compact of Mayors shows unity and ambition to tackle climate change

Compact demonstrates global cities’ commitment to helping nations set more aggressive, transparent climate targets Associated new research shows cities’ current commitments have the potential to reduce GHGs by 13 Gigatons...[more]

23. September 2014

Existing city commitments alone could reduce emissions by a total of 13 GtCO2e by 2050

New research by the parties to the Compact of Mayors, along with research partner Arup, indicates that existing city commitments alone could reduce annual emissions by 454 Megatons CO2e in 2020 -- a total of 13 Gigatons CO2e by...[more]

Climate action transparency key to trustworthiness

New carbonn Climate Registry (cCR) report reveals that global voluntary reporting of local climate action triggers trustworthiness, access to finance...

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Webinar: Implications of the UN Climate Summit for vertically integrated climate action

14 October 2014, 11:00-12:00 CET[more]

Webinars Earth Hour City Challenge

Dates and recording available here! Fechas y grabación aquí! Dates et enregistrements ici![more]

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