Compact of Mayors

Compact of Mayors
Founded September 23, 2014
(New York City)
Type International organization
Focus Climate change
Area served
Participating member cities
Method Emissions reduction & reporting guidance; Standardized climate risk analysis; Public reporting of local climate impact
Key people
UN Secretary General Ban Ki-moon (Co-founder)
Former New York City Mayor Michael Bloomberg (Co-founder)
Mayor Eduardo Paes (Chair, C40 Cities Climate Leadership Group)
Mayor Kadir Topbaş (President, United Cities and Local Governments)
Mayor Anne Hidalgo (Co-President, United Cities and Local Governments)
Mayor Park Won-soon (President of ICLEI)
Dr. Joan Clos (Executive Director of United Nations Human Settlements Programme)
Mission The Compact of Mayors is dedicated to fighting climate change worldwide, by uniting city leaders under a shared commitment to reduce greenhouse gas emissions, track their progress, and prepare for the short and long-term effects of climate change.

The Compact of Mayors is a global coalition of city leaders addressing climate change by pledging to cut greenhouse gas emissions and prepare for the future impacts of climate change.[1] The Compact highlights cities’ climate impact while measuring their relative risk levels and carbon pollution. The Compact of Mayors seeks to show the importance of city climate action, both at the local level and around the world.[2] The Compact was launched in 2014 by UN Secretary General Ban Ki-moon and former New York City Mayor Michael Bloomberg, the UN Special Envoy for Cities and Climate Change.[3] The Compact represents a common effort from global city networks C40 Cities Climate Leadership Group (C40), ICLEI, and United Cities and Local Governments (UCLG), as well as UN-Habitat, to unite against climate change.[4] 428 global cities have committed to the Compact of Mayors. The collective member cities comprise over 376 million people and 5.19% of the global population.[5]


The Compact of Mayors was launched by Ban Ki-moon and Mike Bloomberg on September 23, 2014 at the UN Climate Summit 2014.[6] The announcement detailed a commitment by 228 cities to cut up to 13 gigatons of carbon emissions by 2050. Mayors Eduardo Paes of Rio de Janeiro, Brazil, Anne Hidalgo of Paris, France and Park Won-soon of Seoul, South Korea joined in the announcement, representing C40, UCLG, and ICLEI.[7] UN-Habitat provided additional support and oversight for the launch of the Compact.

On December 8, 2014, World Resources Institute, C40 Cities, and ICLEI revealed the Global Protocol for Community Scale Greenhouse Gas Emission Inventories (GPC), identified as the first set of standardized global rules for cities to measure and publicly report their carbon pollution emissions. This standard is the baseline on which Compact of Mayors was founded.[8]

At the C40 Latin American Mayors Summit on March 27, 2015, Compact of Mayors officials launched the first public recruiting effort, receiving commitments from twenty Latin American mayors to join the Compact and accelerate their push toward low-carbon economies.[9] On June 30, 2015, Mike Bloomberg and Mayor Anne Hidalgo jointly announced their plans to host a Climate Summit for Local Leaders on December 4 at Paris City Hall.[10] The summit will convene mayors from around the world at the COP21 climate negotiations and build upon existing climate commitments under the Compact of Mayors.[11]

At the National Clean Energy Summit in Las Vegas on August 24, 2015, President Barack Obama challenged 100 cities to commit to the Compact of Mayors as part of a larger push to advance clean energy across the United States.[12] Rio de Janeiro became the first city to achieve full compliance with the Compact on August 26, 2015.[13]

Vice President of the United States Joe Biden called out the success of the Compact of Mayors in promoting action against climate change during his address at the US-China Climate Leadership Summit in Los Angeles on September 15, 2015.[14] Later that month, on September 28, 2015, Mike Bloomberg announced the launch of a new parent organization combining the efforts of the Compact of Mayors and the Compact of States and Regions at NYC Climate Week.[15]

Vice President Biden also cited the success of the Compact of Mayors while speaking on November 5, 2015 at the National League of Cities Congress of Cities in Nashville, Tennessee, USA.[16] On November 20, 2015, the Compact of Mayors was recognized by the White House for exceeding 100 U.S. member cities prior to the COP 21 climate negotiations in Paris.[17]

Mayors and other leaders of hundreds of cities committed to the Compact of Mayors attended the Climate Summit for Local Leaders at Paris City Hall on December 4, 2015 during COP21.[11] At the Climate Summit for Local Leaders, Leonardo DiCaprio welcomed climate action commitments made by 392 cities under the Compact of Mayors, and he urged the local leaders in attendance to do more to fight climate change.[18]

Following the Climate Summit, 428 global cities had committed to the Compact of Mayors, representing over 376 million people worldwide.[5]

The Compact of Mayors officially merged with the Covenant of Mayors on June 22, 2016 in Brussels, Belgium. The newly created Global Covenant of Mayors for Climate and Energy unites more than 7,100 cities in 199 countries across six continents in the shared goal of fighting climate change through coordinated local climate action. The initiative represents more than 600 million residents, or more than 8 percent of the world’s population.[19][20][21]


The Compact of Mayors was launched by UN Secretary General Ban Ki -moon and Mike Bloomberg. The organization receives oversight from ICLEI, United Cities and Local Governments, and C40 Cities Climate Leadership Group. UN-Habitat has provided founding and operational support. Mayor Eduardo Paes of Rio de Janeiro currently serves as the chairperson of C40 Cities,[22] while Mayor Kadir Topbas of Istanbul, Turkey[23] and Mayor Anne Hidalgo of Paris, France currently serve as president and co-president of United Cities and Local Governments.[24] Mayor Park Won-soon of Seoul, South Korea is the current president of ICLEI,[24] and Dr. Joan Clos serves as the current Executive Director of UN Habitat.[25]

See also


  1. Barron-Lopez, Laura. "UN launches global mayors network to fight climate change". TheHill. Retrieved 2015-12-03.
  2. "History - Compact of Mayors". Compact of Mayors. Retrieved 2015-11-24.
  3. "Cities are lapping countries on climate action". Grist. Retrieved 2015-12-03.
  4. "New alliance on city finance unveiled at UN Summit on climate change | Cities Today - Connecting the world's urban leaders". Retrieved 2015-12-03.
  5. 1 2 "Compact of Mayors". Compact of Mayors. Retrieved 2015-12-03.
  6. "Cities Will Solve Climate Change, Not Nations". Retrieved 2015-12-03.
  7. "Bloomberg presents city-centric climate report to U.N.". Retrieved 2015-12-03.
  8. "Cities Take Lead on Tackling Climate Change". EcoWatch. Retrieved 2015-12-09.
  9. "Latin American Mayors Avow Clean Bus Transit". CleanTechnica. Retrieved 2015-12-03.
  10. "Why Cities Will Be Vital Players at Paris Climate Talks". The Huffington Post. Retrieved 2015-12-03.
  11. 1 2 Schapiro, Mark (November 15, 2015). "COP21: Cities Move to Climate Talks' Center Stage". Newsweek. Retrieved December 3, 2015.
  12. "FACT SHEET: President Obama Announces New Actions to Bring Renewable Energy and Energy Efficiency to Households across the Country". Retrieved 2015-12-09.
  13. "Rio, first city to fully comply, Compact of Mayors". Retrieved 2015-12-09.
  14. "Vice President Joe Biden Discusses Local Climate Action at U.S.-China Climate Leaders Summit". YouTube. Compact of Mayors. September 22, 2015. Retrieved December 8, 2015.
  15. Worl, Justin. "Why Cities Are the Next Frontier in the Fight Against Climate Change". Retrieved 2015-12-09.
  16. "Vice President Biden calls on more U.S. cities to commit to the Compact of Mayors". National Geographic (blogs). Retrieved 2015-12-03.
  17. "A Major Milestone for President Obama's Climate Agenda". The White House. Retrieved November 23, 2015.
  18. "DiCaprio Warns Time Is Running Out On Climate Change". The Huffington Post UK. Retrieved 2015-12-12.
  19. "Mayors from 7,100 cities forge world's largest alliance to curb climate change". Retrieved 2016-07-22.
  20. Orttung, Nicole (2016-06-24). "Why cities are forming a global alliance to curb climate change". Christian Science Monitor. ISSN 0882-7729. Retrieved 2016-07-22.
  21. "7,100 Cities From 119 Countries Join Together in Historic Collaboration to Accelerate Climate Action". EcoWatch. Retrieved 2016-07-22.
  22. "World Mayors Lead by Example on Climate Action, Provides Hope for Binding Agreement at COP21". EcoWatch. Retrieved 2015-12-03.
  23. "[UCLG] | [United Cities and Local Governments]". Retrieved 2015-12-03.
  24. 1 2 "Ten global cities, climate plans, COP21 | Cities Today - Connecting the world's urban leaders". Retrieved 2015-12-03.
  25. "Draft Habitat III rules clarify role of local authorities, civil society | Citiscope". Retrieved 2015-12-03.
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