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C40 News Team

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The C40 Cities Climate Leadership Group (C40) is a network of large and engaged cities from around the world committed to implementing meaningful and sustainable climate-related actions locally that will help address climate change globally.

Recognizing that cities consume over two-thirds of the world’s energy and account for more than 70% of global CO2 emissions, our organization’s global field staff works with city governments, supported by our technical experts across a range of program areas to reduce carbon emissions and increase energy efficiency in large cities across the world.

The current chair of the C40 is Rio de Janeiro Mayor Eduardo Paes, and 108th Mayor of New York City Michael R. Bloomberg is President of the Board. The Steering Committee includes: Berlin, Buenos Aires, Copenhagen, Hong Kong, Houston, Jakarta, Johannesburg, London, Los Angeles, Rio de Janeiro, Seoul and Tokyo.

A New Coalition for Urban Transitions to Help Cities Thrive

By UN Secretary-General’s Special Envoy for Cities and Climate Change Mike Bloomberg, Paris Mayor Anne Hidalgo and Rio de Janeiro Mayor Eduardo Paes This article originally appeared in Le Figaro (French) here, and on Huffington Post (English) here. The Paris Climate Agreement, already signed by more than 175 countries, was successful in large part because…

New Coalition To Prove Sustainable Cities Are Better for Growth, Better for Climate

By Seth Schultz, C40 Director of Research, Measurement & Planning, Ani Dasgupta, Global Director of WRI Ross Center for Sustainable Cities, and Nick Godfrey, Head of Policy and Urban Development at New Climate Economy. Cities are all about efficiency. It’s why they exist: to allow easy access to jobs, goods, services and ideas. However, in many countries, new and expanding…

C40 launches new report showcasing obstacles and solutions to climate action in cities

For the first time, representatives from more than 80 of the world’s largest cities have revealed the barriers that are limiting their ambitions to tackle climate change, in a new analysis released today by C40 Cities Climate Leadership Group (C40). Unlocking Climate Action in Megacities also presents a corresponding set of innovative and replicable solutions to overcome…

Informal settlements and climate change: An opportunity and challenge for cities of emerging economies

By Mayor Mpho Parks Tau of Johannesburg The unprecedented growth of cities in emerging economies, coupled with the legacy of apartheid in South Africa has, since the early 1990s, led to a rapid increase in informal settlements, or slums, in Johannesburg. As the economic heartland of South Africa, it is estimated that Johannesburg receives more…

C40 Cities Awards 2016 now open for submissions

C40 Cities Climate Leadership Group (C40) today launched a global call for submissions to the C40 Cities Awards 2016. All cities demonstrating leadership in climate action are encouraged to apply for a chance to be recognised in the world’s foremost sustainability awards. The fourth-annual C40 Cities Awards are being held in partnership with Bloomberg Philanthropies.…

IPCC to Give Cities Special Focus

A successful #CitiesIPCC campaign by city networks and urban stakeholders has resulted in a decision by the IPCC to pay special attention to cities in its work programme towards 2028. Building on the success of COP21, this decision adds to the engagement of cities in tackling climate change and provides new opportunities for collaboration among cities, states and the…

Mayors, city networks and urban stakeholders worldwide call for an IPCC Special Report on Cities and Climate Change

Over 25 organisations have now joined forces to show their support for the Special Report proposal, to be decided during the IPCC 43rd Session in Nairobi on April 11-13  Cities are already facing the impacts of climate change and are highly vulnerable to a range of climate hazards, including sea level rise, street flooding, landslides, droughts, epidemics and…

The Road to the Top: How the City of Jaipur Finished in the Top 3 of the India Smart Cities Challenge

By Sanjay Sridhar, C40 Regional Director for South and West Asia Note: This post originally appeared on the Huffington Post In June of 2015, India’s Prime Minister Narendra Modi launched the Smart Cities Challenge, a competition amongst Indian cities designed to accelerate and inspire more sustainable, citizen centric and effective urban development. The Ministry of Urban Development, which has…

Compact and connected cities are better for people and the environment

The argument has been proven, the data is clear: compact and connected cities are better for people and the environment. Importantly, compact and connected cities are also good for the economy. According to a report by the Global Commission on the Economy and Climate, urban sprawl costs the US economy over $1 trillion dollars per…

Creating a Common Narrative for Financing a Sustainable Urban Future

By Mark Watts, Executive Director of C40, Ani Dasgupta, Global Director of WRI Ross Center for Sustainable Cities, and Brandee McHale, President of the Citi Foundation and Director of Corporate Citizenship at Citi Good ideas that get cities results are worth replicating. Sounds simple enough. But when it comes to scaling up and investing in sustainable urban solutions,…

Now is the moment for an IPCC Special Report on Cities and Climate Change

On April 11 – 13, the Intergovernmental Panel on Climate Change (IPCC) will meet in Nairobi to decide on its work programme for the next reporting cycle. This includes a shortlist of Special Reports to be delivered in the upcoming years; among 27 proposals is the suggestion for an IPCC Special Report on Cities and Climate Change, submitted by…

Cape Town Mayor Patricia de Lille on a more ambitious climate change agenda

Climate change is one of the most significant challenges facing our planet. At the COP21 climate negotiations in Paris in December, I was invited to participate in a number of events that dealt with the role cities can play in pushing national governments to commit to and achieve more ambitious climate change agendas. I have…

Expert Voices: Abha Joshi-Ghani, Director; Leadership, Learning and Innovation at The World Bank

All climate action is ultimately local. Thus cities must take the lead in lowering greenhouse gas emissions, creating green cities, being energy efficient, building mass transit, becoming more resilient and resource efficient, reducing waste and harnessing the digital age to deliver services to their citizens and focusing on sustainability. At the center of this approach is…

These mayors have just been selected for a global leadership role

C40 announced today that Boston Mayor Martin J. Walsh and Mexico City Mayor Miguel Ángel Mancera have been elected to the C40 Steering Committee, the governing body that provides strategic direction for the C40 network. Mexico City Mayor Mancera (left) and Boston Mayor Marty Walsh (right) “On behalf of all C40 members, it is my great pleasure to…

Roadmaps for Successful Climate Action: C40 Cities Share 100 Case Studies Proven to Work

As cities around the world look for ways to implement the Paris Declaration and meet the ambition of the UN Climate Change Conference (COP21), C40 is showcasing 100 real world examples of projects and approaches that have already proved successful in our member cities. Eleven new C40 Good Practice Guides offer mayors and urban policymakers roadmaps for tackling…