室井梨那（Rina Muroi）

Announcement

Circular Yokohama Received the Kanagawa Decarbonization Award

Circular Yokohama received the Dissemination and Promotion Division award at the Kanagawa Decarbonization Award in2026 organized by Kanagawa Prefecture. What is the Kanagawa Decarbonization Award In order to achieve a decarbonized society by 2050, this award system honors individuals, businesses, schools, and other entities that have implemented outstanding initiatives related to decarbonization. It is jointly…

Feb 18, 2026

Announcement

SDGs Locker: Extending the Life of Food Through Shared Urban Infrastructure

We have added a new circular project “SDGs Locker” in our database. SDGs Locker is an unmanned, locker-type vending system designed to reduce food waste by selling items that are still safe and within their best-before date, but would otherwise be discarded. Introduced in Yokohama in January 2024, the project connects food producers and retailers…

Jan 29, 2026

Announcement

Reusable Toner Cartridges: Building a practical pathway from disposable printing to reuse

We have added a new circular project “Reusable Toner Cartridges” in our database. The Reusable Toner Cartridges is a long-running initiative by Hara Trading Co., Ltd., based in Kanagawa Ward, Yokohama, that offers a concrete alternative to disposable office printing supplies. Since 1994, the company has been collecting spent genuine toner cartridges, carefully inspecting and…

Jan 28, 2026

Announcement

YOKOHAMA CIRCULAR DESIGN MUSEUM: A Moving Exhibition of Circular Ideas and Encounters

We have added a new circular project “YOKOHAMA CIRCULAR DESIGN MUSEUM” in our database. The YOKOHAMA CIRCULAR DESIGN MUSEUM is a travelling exhibition that introduces the circular economy through tangible experiences, thoughtful design, and local stories from Yokohama. Operated by Circular Yokohama, the museum invites visitors to engage with circular living not as a concept,…

Jan 27, 2026

News

Yokohama tests PP folder circularity from stationery to car parts

Yokohama City has launched a pilot project to establish a resource circulation model for used plastic clear folders within the Minato Mirai 21 district. This is a collaboration between the municipal government, the Yokohama SDGs Design Center, Mitsubishi Estate, and Mitsubishi Estate Property Management, and they seek to turn common office waste into high-value industrial…

Jan 26, 2026

Announcement

Beer the First: Where Food Waste Meets Circular Brewing

Bread that didn’t sell. Rice left behind. Grape skins after wine pressing. At Beer the First, these everyday “almost-wasted” ingredients find a second life in a glass of craft beer. Launched in 2021, the project began with RE:BREAD an eco-friendly beer brewed from unsold bakery bread in Yokohama. It has since grown into a playful…

Jan 8, 2026

Announcement

Upcycled Stationery Crafted from Discontinued Nautical Charts: From retired sea maps to everyday treasures

Old sea maps still have stories to tell. This “Discontinued Nautical Chart Stationery” project by X-Port Co., Ltd. gives discontinued nautical charts a second life as beautifully crafted stationery and sundries. Once essential for safe navigation, these charts are regularly retired as coastlines and sea conditions change. Instead of becoming waste, they’re transformed into envelopes,…

Jan 6, 2026

Announcement

Sustainable Seafood Project: Japan’s First University Cafeteria Bringing Ocean-Friendly Meals to Students

A lunch tray can be a gateway to ocean sustainability. The Sus-Sea Project is Japan’s first initiative to bring sustainable seafood into a university cafeteria led by Yokohama City University. Launched in 2022 by TEHs, an official student group focused on the Sustainable Development Goals, the project turns everyday meals into meaningful action. By serving…

Jan 5, 2026

Announcement

Yokohama City launches textile drive for GREEN×EXPO 2027 uniforms

Yokohama City has launched a collaborative initiative to collect unwanted clothing from residents and recycle the material into staff uniforms for the upcoming GREEN×EXPO 2027. The circular fashion project began in 2025, and is being conducted in partnership with Harch Inc., the operator of Circular Yokohama and fibre recycling firm Nakano Co., Ltd. Yokohama City…

Dec 25, 2025

News

Yokohama Leads Asia as First Signatory of the Asian Circular Cities Declaration at ASCC 2025

On November 25–26, the Asia Smart City Conference (ASCC 2025) was held in Yokohama, bringing together cities, international organizations, and innovators working toward sustainable urban futures. This year’s conference marked a historic milestone: the launch of the Asian Circular Cities Declaration, the first region-wide framework in Asia dedicated to accelerating circular city transitions. Yokohama proudly…

Nov 27, 2025

Announcement

Minato Mirai Circular City Project: Co-creating a Decarbonized Future in Yokohama

In the heart of Yokohama, a bold experiment is underway, transforming the Minato Mirai 21 district into a model of circular living and decarbonization. The Minato Mirai Circular City Project (MMCC) brings together over 30 facilities, companies, organizations, and citizens to reimagine how an urban district can reach net-zero COs emissions by 2030. Operated by…

Nov 7, 2025

Story

Circular Hospitality in Action: Yokohama Bay Sheraton’s Approach to Food and Energy Cycles

While several hotels across Yokohama are embracing sustainability, Yokohama Bay Sheraton Hotel & Towers stands out for its integrated approach to circulating both food and energy within its operations. Conveniently located with direct access to Yokohama Station, one of the country’s busiest transportation hubs, the hotel introduces circular practices to a wide range of guests,…

Sep 29, 2025