PARIS, June 30, 2015 /PRNewswire-USNewswire/ -- Anne Hidalgo, Mayor of Paris, and Michael R. Bloomberg, the UN Secretary-General's Special Envoy for Cities and Climate Change, announced today that they will co-chair the Climate Summit for Local Leaders, on December 4, 2015, during the United Nations' 21st Session of the Conference of Parties (COP21) in Paris.

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