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October 6, 2016
Bureau of Environment

Message on climate change sent by leaders of the world’s cities on the occasion of the G20 Summit

The Tokyo Metropolitan Government is working to address climate change in partnership with the world’s cities, as a member of the C40 Cities Climate Leadership Group (C40).

On the occasion of the G20 Summit, which was held at Hangzhou, China, the mayors of the C40 cities within the G20 called upon their national leaders to advance climate actions with the goal of making the Paris Agreement adopted at COP21 a reality. The governor of Tokyo was one of the signatories of this message.

Excerpts from the message (click here for the full text) (PDF:310KB)

“…we, mayors of the major cities within the G20, call on our national leaders to work with us to build a low carbon, climate safe world.”

“As mayors, we are already dealing with the consequences of climate change on our cities, from floods to heat waves, and from water shortages to air pollution. Yet, we know that cities are a key part of the climate solution.”

“…we must improve collaboration between national, regional and local governments, as we all work towards the shared objectives, of delivering a low carbon, sustainable world for the next generations.”

Signatories of the message

Mayors/governors of 30 cities including Berlin, London, Mexico City, New York, Paris, Rio de Janeiro, Seoul, Sydney, Tokyo, and Yokohama

C40 (C40 Cities Climate Leadership Group)

Established in 2005 as a network for the world’s cities to work together to reduce greenhouse gas emissions. It has 86 member cities, including Tokyo (became a member in 2006) and Yokohama from Japan.

Paris Agreement

A new international framework to reduce greenhouse gas emissions, which was adopted at COP21 to replace the Kyoto Protocol. Along with the common goal of the world’s countries to hold the increase in the global average temperature to below 2 degrees Celsius above pre-industrial levels, efforts will be pursued to keep this temperature rise within 1.5 degrees Celsius and to effectively eliminate the world’s total greenhouse gas emissions within the latter half of this century.


Policy Planning Section, General Affairs Division, Bureau of Environment