One Planet City Challenge



One Planet City Challenge (OPCC) is a global initiative designed to mobilize action and support from cities in the global transition towards a climate friendly and sustainable future. It is based on WWF’s Earth Hour campaign launched in 2007, which is a global campaign and has reached out more than hundreds of millions of people around the world. In order to do more than switching off lights and ensure a collective impact of these commitments and actions on ground, WWF initiated the OPCC in 2011 in Sweden. The first international pilot of OPCC started with 66 cities in 6 countries and is currently spread across 163 cities in 16 countries.

It is a year-long competition among cities, designed to highlight and reward cities that are prepared to make substantial long-term efforts to combat climate change. Cities are assisted in energy profiling and Greenhouse gases inventorization. The identified low carbon actions implemented by each city shall be reported by the participating cities on an internationally recognized carbon reporting platform for cities called Carbonn, managed by ICLEI- Local Governments for Sustainability. A panel of judges will then review the entries received from across the globe, focusing on sustainable development plans for building, transport, energy and food systems. The best city from each country will be announced as the National Earth Hour Capital, and the winner from these will be declared the Global Earth Hour Capital.

This initiative will help build cities on individual commitments and take them to the higher level of cities.

South Asian project cities:


  • 2017-2018 - Kochi, Coimbatore, Panaji, Pune, Rajkot, Surat, Bangalore, Patna, Vadodara. 
  • 2015-2016 - Cochin, Coimbatore, Dehradun, Gwalior, Kota, Panaji, Pune, Rajkot, Shimla and Surat.
  • 2014-2015 - Ahmedabad, Cochin, Coimbatore, Dehradun, Gandhinagar, Gwalior, Kota, Nashik, Panaji, Pune, Rajkot, Shimla and Thane.
  • 2013-2014 - Pune, Panaji, GHMC (Greater Hyderabad Municipal Corporation), Bhubaneswar, Shimla, Ahmadabad, Cochin and Coimbatore.
  • 2012-2013 - Bhubhaneshwar, Cochin, Coimbatore, Hyderabad, Jaipur and New Delhi.



ICLEI South Asia.


WWF (World Wide Fund)

Project duration:

2012 till present.

For further information, visit the project website:


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