Skip to main content of this page

Current Topics

Please enable JavaScript to use the website of the Tokyo Metropolitan Government.

Updated on September 13, 2013

Tokyo Wins Inaugural C40&Siemens City Climate Leadership Award for Tokyo Cap-and-Trade Program!

Tokyo Metropolitan Government
Bureau of Environment
Urban and Global Environmental Division

On Wednesday, September 4th, Siemens and the C40 Cities Climate Leadership Group (C40) announced the winners of the inaugural City Climate Leadership Awards at a ceremony in London, which honor cities for excellence in urban sustainability and leadership in the fight against climate change.

Tokyo won the award in the category of “Finance & Economic Development” for its Tokyo Cap- and-Trade Program, which is the world’s first city-level cap-and-trade program requiring CO2 reductions from large commercial and industrial buildings.

According to the C40 & Siemens, an independent seven-member judging panel consisting of former city Mayors, architects and representatives of the World Bank, C40 and Siemens evaluated 37 projects in 29 cities as award finalists. At the awards ceremony, which was held last night at the Crystal in London, the winning cities in 10 award categories were announced.

Yuki Arata, Director of the Tokyo Cap-and-Trade Program, Bureau of Environment, Tokyo Metropolitan Government, said at the awards ceremony, “This is a real honor, and we are very proud and humble to receive this award given the high level of competition from other cities. After a lot of discussions with stakeholders, who were initially against the launch of the program, the Tokyo Cap-and Trade Program successfully got off the ground in April 2010. The great news is that we achieved 23% CO2 reduction in 2011, the second year of the program. The program also greatly helped us in overcoming the post-earthquake power crisis in 2011.”

“We would like to contribute to other cities’ measures against climate change around the world through actively providing the policy know-how of TMG, which promoted the Tokyo Cap-and Trade Program,” says Miwa Jinno, Director of the International Environment Cooperation Section, Bureau of Environment.

The Tokyo Cap-and-Trade Program has won two awards in previous years, the ‘Most Groundbreaking Policy Award’ from the World Green Building Council in 2011, and the runner-up of the ‘FT/Citi Ingenuity Awards’ by Citi and The Financial Times in 2012.


Tokyo Metropolitan Government, International Environment Cooperation


Further information on the awards is available at:


The Tokyo Cap-and-Trade Program, launched on April 1st, 2010, is the world’s first city-level cap-and-trade program requiring CO2 reductions from large commercial and industrial buildings, and it is unique and original by approaching CO2 emissions from the perspective of buildings (energy demand-side control). In its first year, covered facilities reduced emissions by 13%, with the following year seeing an additional 10% reduction.
For more information, go to: