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– ICLEI Japan Member Information –
Tokyo Metropolitan Government
Message from the Governor of Tokyo Metropolitan Government
Yuriko Koike
We are now facing two crises – the climate crisis and the energy crisis. The world is undergoing a structural shift towards decarbonization and energy self-sufficiency. Tokyo Metropolitan Government (TMG) has also refined its policies from the perspective of ‘HTT’, Ⓗreducing, Ⓣgenerating, Ⓣsaving energy, an initiative to achieve decarbonization and energy security in an integrated manner. It is our mission to make efficient energy use and the use of renewable energy for future generations for granted.
The TMG is accelerating its efforts to achieve the Carbon Half, a 50% reduction in greenhouse gas emissions by 2030, with the aim of realizing a Zero Emission Tokyo that will contribute to virtually zero global CO2 emissions by 2050.
‘TIME TO ACT’ – now is the time to accelerate action. TMG aims to enhance its knowledge and collaborate with ICLEI members and other cities worldwide.
Overview of Tokyo Metropolitan Government
TMG is located in the Kanto Plain, almost in the center of the Japanese archipelago, and consists of the central ward areas, the Tama area, and the island areas (Izu Islands and Ogasawara Islands). Mountainous and hilly areas such as Okutama and Mt Takao, as well as the island areas with rich nature, are designated as natural parks. The Ogasawara Islands are also registered as a World Heritage Site.
TMG is the capital of Japan and the country’s political, economic, and cultural center, with a large number of governmental agencies and major corporations. It is one of the largest cities in the world with a population of about 14 million. It has a variety of attractions, including a highly developed transportation system, pop culture, and food culture that attracts attention from around the world, and a history and traditional culture that dates back to the Edo period.
Basic Information
14,257,254
Population
(As of 1 June 2025)
2,199㎢
Area
Environmental Initiatives
Approximately 70% of TMG’s energy-derived CO2 emissions come from buildings. For this reason, TMG has been working on building measures since 2000. In 2010, TMG became the first in the world to implement an urban cap-and-trade system, requiring large office buildings to reduce their total CO2 emissions. Since the system’s inception, it has consistently achieved a high reduction rate that exceeds the mandatory reduction target. As a new initiative, an ordinance was enacted in 2022 requiring business operators supplying new houses, etc., to install photovoltaic installations. The system will start in April 2025.
In addition, from 2022, as a response to the climate and energy crises, a campaign is being launched to call on businesses and citizens of TMG to change their behavior under the slogan ‘HTT’, the Japanese acronym for ‘Herasu (Reduce)’, ‘Tsukuru (Generate)’, and ‘Tameru (Save)’ electricity.
Since 2023, TMG has initiated research to expand the scale of renewable energy implementation.
Associate Partnership is available to non-governmental organizations, universities, state and national government agencies and not-for-profit research institutions. The purpose of Associate Partnership is to facilitate dialogues between local governments and these partners, to provide knowledge transfer in line with ICLEI’s Mission and Charter, and an avenue for which partners can support ICLEI’s work and mandate.
HARNESS the power of the ICLEI Network!" Governments need to give (the sense of) direction, as Business leaders we don't make the wind, we sail the boats. So policy should set the winds in the right directions if you want the boat going fast to the right harbor."Philippe Joubert Senior Advisor, World Business Council
on Sustainable Development
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Rates and Dues
Application Form
Eva Madeira Head of ICLEI Global Membership & Governance
Joining ICLEI means connecting to more than 2,500 local and regional governments as well as technical experts and a diversity community of partners worldwide. ICLEI Members actively engage with their peers through conferences, workshops, webinars and online platforms and take advantage of our connections with businesses, financial institutions and other implementation partners that help strengthen innovation and resourcing.
Eva Madeira Head of ICLEI Global Membership & Governance
Got any questions? I will be happy to assist. Please contact me at iclei(at)iclei.org
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First benefit point
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Eva Madeira Head of ICLEI Global Membership & Governance
Got any questions? I will be happy to assist. Please contact me at iclei(at)iclei.org
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Fee Structure
Benefits
Eva Madeira Head of ICLEI Global Membership & Governance
Got any questions? I will be happy to assist. Please contact me at iclei(at)iclei.org