Chair of the C40

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Paris Mayor Anne Hidalgo became the chair of C40 during the Summit, continuing a line of dedicated leadership.

A Strong Advocate for Cities

The Chair is the elected leader of the organisation. A strong advocate for the role of cities in addressing climate change, the Chair brings both expertise and resources to bear on the work of the C40 organisation, strengthening the network of cities in pursuit of its common goals. The Chairmanship is a rotating position, which has been held to date by the following C40 City Mayors:

  • Paris Mayor Anne Hidalgo (2016-present)
  • Rio de Janeiro Mayor Eduardo Paes (2013-2016)
  • New York Mayor Michael R. Bloomberg (2010-2013)
  • Toronto Mayor David Miller (2008-2010)
  • London Mayor Ken Livingstone (2005-2008)

Former C40 Chair, New York City Mayor Michael R. Bloomberg is President of the C40 Board of Directors.

Anne Hidalgo
Mayor of Paris, Chair of C40



The first woman to be elected Mayor of Paris, Anne Hidalgo took office in April 2014. Her agenda is focused on social inclusion, sustainable development, solidarity, citizen participation and innovation, essential topics in building the Paris of tomorrow.

After co-hosting the Climate Summit for Local Leaders in December 2015 with Michael Bloomberg, the UN Secretary-General's Special Envoy for Cities and Climate Change, she was elected as the new Chair of C40 Cities, the leading network of the 90 most important cities in the world committed to addressing climate change.

Born in Spain, she is the mother of three children and married to Jean-Marc Germain, a Member of Parliament. Former Labour inspector, she has occupied several positions in national and international organizations before becoming First Deputy Mayor of Paris (2001- 14), in charge of gender equality and later in charge of urban planning and architecture. She holds a Master’s degree in Labour law from the Labour and Social Security Institute of Paris.