From local action to global impact,
Yokohama is driving a circular and sustainable future.
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From Yokohama to Asia: Sharing Pathways for Circular Cities
What enables some cities to drive the transition to a circular economy so effectively? Success requires more than just cutting-edge technology or ambitious policy targets. In Yokohama, our progress is driven by trust, a form of capital built through decades of...
Yokohama’s Circular Journey: How Yokohama Empowers Civic Engagement
Minato Mirai 21, Yokohama’s leading waterfront district supporting innovation and sustainable city initiatives.Reducing household waste by 43% in a massive, growing metropolis is no small feat. This is one of Yokohama’s landmark achievements born from the...
Yokohama leads Asian Circular Cities Declaration as first signatory at ASCC 2025
On November 25–26, at the Asia Smart City Conference (ASCC) 2025 in Yokohama, the establishment of the Asian Circular Cities Declaration was announced. The Circular Cities Declaration is a framework launched in Europe in 2020, with about 90 European cities...
Yokohama Leads Climate Week NYC Event on U.S.-Japan Intercity Climate Action
On September 25, 2025, the City of Yokohama led an official event during Climate Week NYC 2025 (September 21–28), one of the world’s largest climate-focused gatherings held annually in New York City. To the best of our knowledge, Yokohama became the first Japanese...
Yokohama Presents its Green City Initiatives at 5th UN Forum of Mayors
The Director of the European Office attended the Fifth United Nations Forum of Mayors, held in Geneva, Switzerland, from October 6 to 7, 2025, as a representative of Yokohama Mayor Takeharu Yamanaka. At a session discussing climate change finance mechanisms and local...
Taiwan Design Research Institute, Firms Visit Yokohama for Circular Economy
In August 2025, a delegation of about 20 members from the Taiwan Design Research Institute (TDRI), along with companies and startups working on circular economy and circular design, visited Japan to learn about leading local governments’ policies in this field. We...
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GREEN × EXPO 2027
STYLE100: 100 sustainable lifestyles from Yokohama
