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Rio de Janeiro just became world’s first Compact of Mayors compliant city

  Today, C40 Chair and Rio de Janeiro Mayor Eduardo Paes announced his city’s full compliance with the Compact of Mayors, making it the first city in the world to reach the Compact compliance milestone. The announcement comes at an exciting time in this global effort: earlier this week, US President Barack Obama announced that 15 new…

Sydney Lord Mayor on preparing for the challenge of a changing climate

By Sydney Lord Mayor Clover Moore The City of Sydney has been carbon neutral since 2008. Amidst strong economic growth, emissions across our Local Government Area have fallen 12 per cent since 2006 and we have reduced emissions in our own buildings and operations by over 23 per cent. In continuing our work to create…

President Obama just challenged all cities to step up their climate game before COP21

The White House released a fact sheet today announcing a number of initiatives to increase energy efficiency measures in cities across the United States, and specifically called out the Compact of Mayors as a key effort to achieve President Obama’s goals.   Specifically, President Obama issued a challenge to all U.S. mayors to publicly commit to…

Michael R. Bloomberg on the Century of Cities

In the most recent issue of Foreign Affairs magazine, C40 Board President and UN Special Envoy for Cities & Climate Change Michael R. Bloomberg writes about how cities are catalyzing sustainable economic growth and spurring solutions across the globe. “By concentrating the brainpower of humanity in relatively small geographic areas, cities have promoted the kinds…

Cities from India, Philippines, and United Arab Emirates Join C40’s Global Network

C40 would like to extend a warm welcome to newest member cities Bengaluru, Dubai, and Quezon City, which together represent more than 22 million urban citizens. From a pedestrian priority project in Bengaluru, to an integrated energy strategy in Dubai and innovative ecological solid waste management program in Quezon City, these cities are leading on…

C40 Mayors Agree: Clean Power Plan is a Big Win

C40 mayors around the United States were eager to support President Obama’s Clean Power Plan, which was finalized Monday and is seen as a key component of the country’s climate commitment for the COP21 climate negotiations at the end of the year. The new plan is widely lauded by the environmental community as an expression…

Dozens of mayors visited the Pope today – here’s what happened

A Strong Show of Commitment to Papal Agenda on Climate Change & Sustainable Development  Following the launch of the Encyclical Letter on the Care for Our Common Home, Laudato Si, and in the lead up to the Paris Climate Change Conference, COP21, Pope Francis today convened more than 60 local leaders from around the world…

Christiana Figueres says cities are accelerating sustainable development – find out how

Editor’s Note: 2015 marks C40’s 10-year anniversary. To celebrate our 10 Years of Results, we are featuring the voices of C40 principals, partners and other thought leaders throughout the year. Christiana Figueres is the Executive Secretary of the UNFCCC. Last century was marked by unprecedented growth accompanied by unprecedented urbanization. Knowing now that much of this…

Calling All Cities: Three Chances for Global Recognition

Applications now open for C40 Cities Awards and Cities100 publication Today, C40 and Scandinavian think tank Sustainia launched a global call for submissions to the C40 Cities Awards and Cities100 publication.  All cities demonstrating leadership in taking climate action are encouraged to apply. Cities will have three chances for global recognition: 100 solutions will be…

Cities are catalysts for better economic growth and climate action, according to new report

Better economic growth can help close the greenhouse gas emissions gap, according to a new report released today by the New Climate Economy, the flagship project of the Global Commission on the Economy and Climate. Seizing the Global Opportunity: Partnerships for Better Growth and a Better Climate identifies 10 key areas of economic opportunity that…

New Research from C40 and Arup Shows How City Governments are Changing the World

Today, C40 and Arup released Powering Climate Action: Cities as Global Changemakers, a report that demonstrates cities are taking substantial steps on climate action by collaborating and leveraging partnerships not only with each other, but also with the private sector and civil society. Seth Schultz, C40 Director of Research, Measurement & Planning, said: “The Powering Climate Action report…

The Hazards of Growing Up on Treasure Island: One of the Most Beautiful Places on Earth

Some residents who live on Treasure Island in the San Francisco Bay are concerned about exposure to toxins, because many areas on the island have been marked as radioactive. While officials at the California Environmental Protection Agency have not currently identified unsafe levels of contamination in homes on the island, young people who live there still worry about potential health risks.

C40 & Advertising Partners Launch Global Pro Bono Digital Ad Campaign to Showcase City Leadership

Today, C40 launched #CitiesAreKey, a new global social and digital ad campaign designed to amplify the leadership role of cities in the lead-up to the international COP21 climate negotiations in Paris in December. The campaign, announced via continuous ads on the iconic ‘Grand Screen’ digital billboard throughout the weeklong Cannes Lions International Festival of Creativity, will capitalize…

C40 Chair Paes: The Role Of Cities In Protecting The Common Home

Eduardo Paes, Mayor of the City of Rio de Janeiro and Chair of C40 Since the inauguration of his pontificate, in 2013, Pope Francis has been an example of inspiring and courageous leadership, combining strategic vision and practical action to help the Church overcome its major challenges. As a global leader, the Holy Father lives up…

Mahindra World City Jaipur becomes world’s largest project to receive C40 Climate Positive Development Stage 2 Certification

Mahindra World City Jaipur, one of India’s premier integrated business cities, today became the first Asian project to receive Stage 2 Climate Positive Development certification from C40. The Climate Positive Development Programme is a performance-based framework designed to create models for how cities can grow in low carbon ways. The Mahindra project, which is also…