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Press Releases

Press Release

December 3, 2015

Press Release: MasterCard and C40 Partner to Rally Megacities Around Sustainable Mobility

Paris, France – December 3, 2015 – As heads of state gather for the COP21 climate talks in Paris, MasterCard…
Press Release

November 23, 2015

Press Release: From Copenhagen to Paris, cities and mayors are leading the way on climate action

Today, the C40 Cities Climate Leadership Group (C40) and research partner Arup released Climate Action in Megacities (CAM 3.0), a…
Press Release

November 3, 2015

Press Release: C40 Debuts Global Pro Bono Ad Campaign to Highlight Climate Action in Megacities

2 November 2015 (London, UK) – Today, the C40 Cities Climate Leadership Group (C40) debuted its first ad for #CitiesAreKey,…
Press Release

October 8, 2015

Press Release: One third of the world’s remaining safe carbon budget could be determined by urban policy decisions in the next five years

Washington, D.C. (8 October, 2015) - The C40 Cities Climate Leadership Group (C40) announced a new report today, which demonstrates…
Press Release

October 7, 2015

Press Release: 33 Finalist Projects Selected for C40 Cities Awards

Today, the C40 Cities Climate Leadership Group (C40) announced the 33 finalists competing in ten urban climate action categories for…
Press Release

September 28, 2015

Press Release: Michael R. Bloomberg Delivers Keynote at Climate Week NYC’s Signature Event, Urges Cities, States and Regions to Take Local Climate Action

New York (September 28, 2015) - Michael R. Bloomberg, UN Secretary-General’s Special Envoy for Cities and Climate Change, founder of…

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October 1, 2026
C40 2025 Annual Report: How cities are strengthening local leadership to ensure a fairer, healthier future
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September 30, 2026
Celebrating the Winners of the Fifth Youth Reinventing Cities Global Competition
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