Cities are on the front lines of climate change, accounting for 70 percent of global carbon emissions.
The Clinton Climate Initiative (CCI) Cities program works in an aligned partnership with the C40 Cities Climate Leadership Group – a network of 63 large and engaged cities from around the world committed to implementing meaningful and sustainable climate-related policies and programs.

The Clinton Climate Initiative (CCI) Cities program works in an aligned partnership with the C40 Cities Climate Leadership Group – a network of 63 large and engaged cities from around the world committed to implementing meaningful and sustainable climate-related policies and programs locally that will help address climate change globally.

CCI Cities became the delivery partner of C40 in 2006. The closer alliance between the two organizations – announced in the spring of 2011 by President Clinton and C40 Chair, New York City Mayor Michael R. Bloomberg – brings significant resources and infrastructure that will enhance and accelerate their historic activities, positioning the combined effort as one of the preeminent climate action organizations in the world.

Why cities? Home to more than half the world’s population and growing rapidly, cities are on the frontlines of climate change, accounting for 70 percent of global carbon emissions and increasingly vulnerable to climate risks and impacts. Cities therefore have a responsibility – and the will – to act.

Today, the C40-CCI partnership advances collaborative and data-driven action by global megacities to reduce the sources and risks of climate change. We work across seven key sectors and initiative areas: Energy; Finance and Economic Development; Measurement and Planning; Sustainable Communities; Transport; Waste; as well as Water and Adaptation. In each, we convene networks of cities with common goals and challenges, providing a suite of services in support of their efforts: direct technical assistance; facilitation of peer-to-peer exchange; and research and communications.

Together, CCI and C40 have helped to position cities as a leading force for climate action around the world, engaging local communities, national governments and international bodies in the effort to build a sustainable future.

To learn more about C40, visit or follow us on Twitter @C40Cities.

Low Carbon Transportation

Cars, trucks, buses, and trains represent nearly 12 percent of global greenhouse gas emissions. With increased urbanization and development, this sector represents one of the fastest growing sources of emissions, as more people become dependent on motorized transport.

Developing Urban Transportation Systems

Clinton Climate Initiative (CCI) with the C40 Cities Climate Leadership Group (C40) works with partner cities to develop cost-effective public and non-motorized transit systems which reduce greenhouse gas emissions and increase the quality of urban life. Our global partnership with the Institute for Transportation and Development Policy (ITDP) focuses on the implementation and improvement of Bus Rapid Transit (BRT) systems and bicycle networks. We are delivering a number of projects that pave the way for replication around the world. Projects in cities including Johannesburg, Bogotá, São Paulo, and Mexico City address route optimization, operational planning and, for fuel options for BRT systems.

Advancing Carbon-Neutral Transportation Technologies

C40-CCI Cities also helps cities adopt proven and emerging technologies to reduce carbon emission in their transportation sector. We take a holistic view, looking at vehicles and propulsion systems, fuel options, and fuel distribution and dispensing infrastructure. We provide technology expertise, mobilize markets, and facilitate financing.

Promoting electric vehicles is essential to advancing carbon-neutral transportation technologies. C40-CCI Cities has brought together 15 of the world’s largest cities, in collaboration with four leading electric vehicle manufacturers, to make major cities more electric vehicle friendly. The cities of Bogotá, Buenos Aires, Chicago, Copenhagen, Delhi, Hong Kong, Houston, London, Los Angeles, Madrid, Mexico City, Toronto, São Paulo, Seoul, and Sydney have come together to form the ‘C40 Electric Vehicle Network’ and collectively will address four areas of municipal action that are critical to the successful introduction of electric vehicles.

Waste Management

Waste in landfills around the world is the third largest source of anthropogenic methane emissions – 23 times more potent as a greenhouse gas agent than CO2. The Clinton Climate Initiative (CCI) with the C40 Cities Climate Leadership Group’s (C40) Waste Management Program supports practical action to reduce and prevent greenhouse gas emissions from municipal solid waste. Through infrastructure, policies, and alternative technologies, this program helps cities reduce reliance on landfills through recycling, composting, and capture and use of methane to generate power, minimizing risks to human health and well-being.

C40-CCI Cities takes a multi-faceted approach to waste management. Our key areas of focus are: diversion of organic waste streams, by targeting alternative technologies such as composting and anaerobic digestion to reduce the amount of waste sent to landfills; the capture of methane gas from landfills as a potential alternative fuel source; recycling construction and demolition waste; recovering recyclable commodities, such as metals, glass, paper, plastic and electronic waste; and, evaluating the municipal infrastructure necessary to collect, process and market recyclable commodities effectively, to help cities design supporting policies and regulations.

C40-CCI Cities works closely with our partner cities to evaluate their current waste management systems and develop a strategy for not only reducing green house gas emissions, but also maximizing revenue potential.

Outdoor Lighting

Outdoor lighting systems can account for a significant percentage of a municipal government’s electricity usage. Depending on the size of the city, the infrastructure it manages, and the efficacy of the lighting system, it can be as high as 60 percent. But with innovative new technologies, cities can raise the efficiency standard for outdoor lighting while quickly reducing greenhouse gas emissions and saving on energy costs.

Clinton Climate Initiative (CCI) with the C40 Cities Climate Leadership Group (C40) Cities works to improve the efficiency of outdoor lighting in cities by focusing on two key areas: advanced streetlights and LED traffic signals. New streetlight technologies can help cities reduce their energy use by up to 70 percent. These technologies include high-efficacy LED, induction, a new generation of high-efficacy ceramic metal halide, and centralized intelligent control systems. By implementing streetlight retrofits, cities save money from the increase in efficiency and can pay back the implementation costs in three to eight years.

While the majority of traffic signals in the United States have been converted to energy-efficient LED lights, worldwide adoption remains low. C40-CCI Cities is helping to address this issue by developing traffic light retrofit projects in cities around the world. By replacing conventional incandescent signals with LEDs, cities can reduce traffic signal energy use by as much as 90 percent. Longer life expectancies of LED signals can reduce maintenance costs by approximately 75 percent. Traffic signal retrofits can pay for themselves through savings in one to three years.

Climate Positive Development Program

The Climate Positive Development Program (CPDP) was created to meet the pressing dual challenges of rapid urbanization and climate change. CPDP aims to create a model for large-scale urban communities that reduce greenhouse gasses and serve as urban laboratories for cities seeking to grow in ways that are environmentally sustainable and economically viable. CPDP is a program within the Sustainable Communities Initiative of the C40 Cities Climate Leadership Group, and was developed in partnership with the Clinton Climate Initiative Cities Program and the U.S. Green Building Council (USGBC).

CPDP and its Development Partners are active contributors to C40 Cities and the organization’s global networks, united in their commitment to implementing meaningful and sustainable climate-related actions locally that will help address climate change globally. At the same time, CPDP participants also benefit from the opportunity to exchange information with municipal leaders and developers across a broad set of projects in C40 Cities worldwide.

CPDP developers seek to meet a “climate positive” emissions target of net-negative on-site, operational greenhouse gas (GHG) emissions. This climate positive outcome is achieved by reducing emissions on-site and offsetting emissions in the surrounding community.

Every CPDP project has a unique profile, given their distinct economic, political, and climate challenges, yet each is striving for the ambitious goal of lowering their operational GHG emissions below zero. Development Partners accepted into CPDP are expected to pursue the integrated planning of energy efficient buildings, low carbon transportation solutions, and waste and water management systems at the district scale.

In order to get “beyond carbon neutral” and achieve a Climate Positive outcome, Development Partners earn Climate Positive Credits by sequestering emissions on-site and abating emissions from surrounding communities. There are many different paths to the Climate Positive outcome of net-negative operational GHG emissions; each project will use a different set of strategies and technologies according to its local opportunities, guided by the Climate Positive Development Framework, which lays out the four stages of the Climate Positive journey.

CPDP facilitates knowledge-sharing across the Program and related C40 networks, so that successful strategies can be replicated, and pitfalls can be avoided. CPDP also facilitates technical and logistical support to Development Partners by hosting learning programs and webinars, convening private sector firms to produce tools and templates for project use, increasing project visibility through various media channels, and granting access to technical experts and other partners within the CPDP and C40 network.


The Climate Positive Framework clarifies requirements and procedural guidelines for participation in the Program, and establishes a recognition platform to recognize Development Partners for their successes. The Framework is designed to encourage the creativity of Development Partners. Because there is no singular path to achieving a Climate Positive outcome, and because projects of this size may take decades to complete, the Framework provides a broad structure under which Development Partners can work on creative solutions to emissions reductions and adapt strategies as needed over time.

The Framework outlines four key recognition stages associated with a Development Partners’ Climate Positive journey. As projects move through the recognition stages, Development Partners submit documentation to CPDP to ensure that they remain on track, and receive feedback from program staff and affiliated experts.

Current CPDP Projects

CPDP is currently working with Development Partners on 18 projects across six continents. The current roster of projects consists of:

Barangaroo, Sydney, Australia
Victoria Harbour, Melbourne, Australia
Parque da Cidade, São Paulo, Brazil
Pedra Branca Sustainable Urbanism, Palhoça, Greater Florianópolis, Brazil
Dockside Green, Victoria, BC, Canada
Waterfront Toronto, Lower Don Lands, Toronto, ON, Canada
Nordhavn, Copenhagen, Denmark
ProjectZero, Sonderborg, Denmark
Godrej Garden City, Ahmedabad, India
Mahindra World City, Jaipur, India
Menlyn Maine, Pretoria, South Africa
Magok Urban Development Project, Seoul, South Korea
Stockholm Royal Seaport, Stockholm, Sweden
Royal Albert Basin, London, UK
Elephant & Castle, London, UK
Treasure Island Development Project, San Francisco, CA, USA
The Oberlin Project, Oberlin, OH, USA
EcoDistricts, Portland, OR, USA

These 18 projects, once completed, will impact the nearly one million people who will live and work in Climate Positive communities. In addition to the Climate Positive Framework, nearly every project is pursuing other locally relevant green building certification schemes, such as BREEAM, Green Star or LEED certification for buildings or neighborhood development. CPDP projects utilize a range of renewable and clean energy strategies to reach their low emissions targets, including district heating and cooling, CHP, waste-to-energy, and wind and solar power. Nearly half of the projects are building upon brownfield sites that require environmental remediation to clean up prior industrial contamination. Many projects are also engaged in water preservation and recycling, green space preservation, and adaptation measures to guard against sea level rise and flooding. Further, every CPDP project has a unique approach to transportation solutions, including electric vehicle infrastructure, bus rapid transit (BRT), walking and biking paths, and other forms of public transit and parking management solutions. Together, the projects will reduce the emissions impact of one million people and demonstrate a multi-faceted approach to sustainable community development that is both economically viable and climate positive.

Information on joining CPDP

CPDP is always receptive to hearing from developers of outstanding or unique urban development projects, and is currently considering new applications. To contact CPDP about these opportunities, or to find out more about the Program, please email queries to or Contact us. Upon review of information sent, CPDP may invite parties to submit a formal application to the Program.

Expanding Climate Change Knowledge

C40 Cities Climate Leadership Group provides resources to educate organizations and governments on how to take action against climate change. C40-CCI Cities hosts summits and workshops and has published two landmark research reports, which provides a measurement platform and management tool enabling our organization and cities themselves to set strategic direction, evaluate actions and access resources. The two reports are: Global Report on C40 Cities, developed in partnership with the Carbon Disclosure Project; and Climate Action in Megacities, developed in partnership with Arup