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Updates

March 31, 2025

Tokyo Flood Control Measures: The 13 km Underground Tunnel Protecting the City from Urban Flooding

Tokyo Metropolitan Government (TMG) is focusing on measures to combat urban flooding, including the construction of facilities like the Kanda River/Ring Road No.7 Underground Wide Area Regulating Reservoir to prevent river overflows. The reservoir will connect five major rivers, stretch 13.1 km, and hold 1.43 million ㎥ of water. Plans to discharge water into Tokyo Bay are also under consideration.

March 31, 2025

Rohit Aggarwala: Tapping into Robust Water Management in NYC

Last November, 10 leading visitors from TMG’s Bureau of Waterworks and Bureau of Sewerage visited New York City's Department of Environmental Protection, enhancing their knowledge of NYC’s water management. Rohit Aggarwala, Commissioner of the DEP, shares insights on New York’s water management policies and the significance of participation in initiatives with G-NETS partners.

March 31, 2025

G-NETS Joint Project: Working with Ulaanbaatar on Sewerage Challenges and Human Resource Development

As part of a G-NETS working group joint project, Tokyo launched a technical exchange initiative with participating cities in 2024. In October, staff from the Tokyo Metropolitan Government (TMG) Bureau of Sewerage visited Ulaanbaatar to observe current sewerage operations, including regulations on the city’s industrial wastewater. In addition, Tokyo also received insights into support measures for challenges such as reconstruction of wastewater treatment plants—an issue shared by both cities—and their management, as well as the development of human resources that can contribute internationally.

March 27, 2025

Working-Level Staff from 5 Cities Visit Tokyo: Insights into Water Supply, Sewerage Facilities, and Training Centers

As part of a G-NETS joint project, representatives from five cities participated in a two-day site visit program on December 5–6 in 2024, hosted by Tokyo Metropolitan Government (TMG), focusing on water supply and sewerage facilities. Participants experienced hands-on training at two training centers, recognizing the importance of well-structured training programs and advanced facilities. Discussions were held after the tours to share insights on common urban challenges.

March 27, 2025

TMG Visits NYC: Sharing Insights on 4 Key Topics in Water Management

Based on a Memorandum of Understanding (MOU) between Tokyo Metropolitan Government (TMG) and New York City (NYC), representatives from Bureau of Waterworks and Bureau of Sewerage, TMG visited the NYC Department of Environmental Protection (DEP) in November 2024. Discussions were held with Commissioner of the DEP and NYC Chief Climate Officer Rohit Aggarwala, focusing on four key topics of mutual interest. Given the significance of mutual exchange between the two cities owing to their many similarities in terms of business scale and other aspects, both parties confirmed that they will continue to conduct exchanges.

February 28, 2025

G-NETS Held Working Group Meetings

G-NETS working group held online thematic meetings in December, 2024 and online plenary meeting in January, 2025.

July 30, 2024

“SusHi Tech Tokyo 2025” Set for Next May

An Upgraded Version of One of Asia’s Largest Startup Conferences

June 28, 2024

Berlin Mayor Voices Hope for Global City Network

Kai Wegner, Governing Mayor of Berlin, made his first visit to Japan in May in commemoration of the 30th anniversary of the friendship between the Tokyo Metropolitan Government (TMG) and Berlin.

May 17, 2024

SusHi Tech Tokyo 2024 City Leaders Program Communiqué

From May 15 to 17, 2024, the Tokyo Metropolitan Government hosted City Leaders Program(The 2nd G-NETS Leaders Summit), one of the events of SusHi Tech Tokyo 2024.

February 09, 2024

City Leaders Program Preparatory Meeting (The 2nd Senior Officials Meeting)

From January 31 to February 2, Tokyo Metropolitan Government (TMG) hosted a preparatory meeting for the SusHi Tech Tokyo 2024 City Leaders Program, which will be held in May.