From local action to global impact,
Yokohama is driving a circular and sustainable future.
News and Events
Delegation from Vietnam visits Yokohama and tours wastewater treatment facilities
On May 15, a delegation from the People’s Committee of Dong Thap Province in Vietnam toured the Hokubu No. 2 Wastewater Treatment Plant in Yokohama City. During the visit, the delegation observed both water treatment and sludge treatment processes. Participants showed...
Yokohama purchases world’s first certified “environmental value” generated by ammonia-fueled tugboat
The City of Yokohama is strengthening its leadership in sustainable maritime innovation through an initiative supporting the ammonia-fueled tugboat Sakigake and accelerating efforts to promote next-generation marine fuels and reduce greenhouse gas emissions by...
The Office of the City of Yokohama Representative to the Americas Speaks at “VLR–VSR Days 2026,” a UN HLPF-Related Event
On July 8, 2026, the Office of the City of Yokohama Representative to the Americas participated in the 5th VLR–VSR Days 2026, held within the framework of the United Nations High-Level Political Forum (HLPF) on Sustainable Development, and spoke during Session 1,...
Yokohama to host the 11th Pacific Islands Leaders Meeting (PALM11)
On June 17, Chief Cabinet Secretary Kihara announced that the 11th Pacific Islands Leaders Meeting (PALM11) will be held in Yokohama in the summer of 2027. PALM (Pacific Islands Leaders Meeting) is a summit hosted by the Government of Japan every three years since...
Yokohama strengthens ties with Germany through key meetings in Bonn and Frankfurt
On June 10 and 11, Mayor Yamanaka of Yokohama held a series of important meetings in Germany, reaffirming the city’s commitment to international collaboration in sustainability and economic exchange. In Bonn, Mayor Yamanaka met with Gerhard Wiesheu, Chairman of the...
City of Yokohama Hosts Japan–U.S. Climate & Deep Tech Event in New York
The Office of the City of Yokohama Representative to the Americas hosted its "Japan Gateway for Climate & Deep Tech" event on Monday, June 1, 2026, during New York Tech Week at Baker & McKenzie LLP in New York City. The event was organized by the Office of the...
Find Out More
Platform for Circular City Transition
Actionable Insights and Collaborative Solutions
GREEN×EXPO 2027, Yokohama, Japan
International Horticultural Expo 2027
（19 Mar.2027–26 Sep.2027)
STYLE100
Sustainable actions and shared practices
International Technical Cooperation
Co-creating Innovative Smart Urban Solutions
Carbon-Neutral Port
Featured Video
Platform for Circular City Transition
GREEN×EXPO2027,Yokohama,Japan