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.

The carbonn® Climate Registry 5 Year Overview Report (2010 - 2015) is now available     Download here



The carbonn® Climate Registry is designed as the global response of local and subnational governments towards Measurable, Reportable and Verifiable (MRV) climate action. Through numerous partnerships on political commitments, capacity building and regarding schemes, the cCR has become the world's leading reporting platform to enhance global transparency and accountability of local and subnational governments' climate action.

→ Click here to report and here for more information on reporting in Bahasa Indonesia, French, English, Spanish and Portuguese. 

→ To commit to the Compact of Mayors, click here


20. April 2016

How do the Compact of Mayors and Covenant of Mayors benefit local governments? Join us in Bilbao to learn more about these two initiatives

Today, many cities, towns and regions actively plan and achieve greenhouse gas (GHG) emission reductions and adapt to climate change. They have been crucial in raising ambition at the global level, also showing the impact of...[more]

31. March 2016

Compact of Mayors Welcomes First Commitments from Thailand

Nine Thai cities recently committed to the Compact of Mayors, the world’s leading coalition of local leaders tackling climate change by pledging to reduce their greenhouse gas emissions, tracking their progress and preparing...[more]

08. February 2016

Call for Proposals for Sub-Saharan Cities: explore support from Covenant of Mayors

The Covenant of Mayors is expanding beyond the wider European region, into Africa - aiming to export inspiring examples, principles and a methodology for Sub-Saharan African cities on addressing sustainable energy. A call for...[more]

05. January 2016

Saluting historic partnership between the Compact of Mayors and the Covenant of Mayors

On December 4th 2015 during COP21, the UN Secretary General’s Special Envoy for Cities and Climate Change, Michael R. Bloomberg and the European Commissioner for Economic and Financial Affairs, Pierre Moscovici announced that the...[more]

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cCR 5 Year Report Launch and session at Cities and Regions Pavilion

4 December 2015 (13:30-15:30)

Cities & Regions Pavilion- TAP 2015

30 November - 11 December 2015

Climate Summit for Local Leaders

4 December 2015

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