室井梨那（Rina Muroi）

Event

[9/12]Community Loops: A New Circular Fashion Project by Circular Yokohama

Circular Yokohama is operating the ministry of the environment subsidized project “Community Loops” together with CYKLUS, a company engaged in circular economy businesses focused on clothing repair, remake, and fashion. The initiative aims to achieve resource circulation within the community and create new community value through used clothing up-cycling and recycling. To commemorate the launch,…

Aug 26, 2025

Announcement

Sachiumi Heroes: A Seaweed-Powered Revival from the Ocean Floor

What if seaweed could help save the planet and revitalize the local economy? Meet Sachiumi Heroes, a marine restoration project in Yokohama’s Kanazawa Ward that turns kelp farming into an act of climate action and community empowerment. In Japan, a growing concern called iso-yake, underwater deserts caused by disappearing seaweed beds, has devastated marine ecosystems.…

Aug 5, 2025

Announcement

Hoshiten Circular Library: A Moving Bookshelf of Sustainable Ideas

What if books could circulate just like resources? The Hoshiten Circular Library is a mobile bookshelf that shares not only books, but stories of circular living across Yokohama. From city streets to community events, it pops up in unexpected places—inviting people to borrow, return, and contribute books on sustainability, creativity, and local action. It’s more…

Jun 25, 2025

Announcement

Kurofune Soap: Crafting Clean Futures from Used Cooking Oil

What if your daily soap told a story? Kurofune Soap blends Yokohama’s rich port history with today’s circular mindset. Crafted from used cooking oil collected locally, these handmade soaps aren’t just eco-friendly—they’re conversation starters. Each bar is shaped like the iconic “black ships” (Kurofune), connecting the past and present through a refreshing, sustainable experience. Take…

Jun 6, 2025

Report

The Repair Cafe screened at TBS SDGs event “Plaza to Make the Earth Smile”

Circular Yokohama and our sister media IDEAS FOR GOOD screened its documentary The Repair Cafe on May 4 at the SDGs event “Plaza to Make the Earth Smile” held at TBS Akasaka Sacas Square. “Plaza to Make the Earth Smile” is part of TBS’s “WEEK to Make the Earth Smile” project, a related initiative designed…

Jun 3, 2025

Announcement

Coffee Grounds Art: Giving New Life to the Morning Brew

Used coffee as a canvas? Discover Coffee Grounds Art, where leftover coffee is reborn as beautiful artwork and creative workshops. From waste to wonder, find how circular ideas are brewing in Yokohama.

May 22, 2025

Announcement

Yomigaeri: Recycled Work Gloves Made Primarily from Used Clothing Fibers

We have added a new circular project “Yomigaeri” in our database. What if a pair of gloves could tell the story of your old clothes? Yomigaeri is a sustainable work glove made from discarded textiles—designed not only to reduce CO₂ emissions but to celebrate the value of what we throw away. Created by Nakano Co.,…

May 19, 2025

Announcement

Seyamitsu Lab: A Circular Living Hub Born in the Heart of Seya Ward

We have added a new circular project “Seyamitsu Lab” in our database. What if beekeeping could help revitalize a neighborhood? Seyamitsu Lab is turning that question into reality. Launched by local youth in Yokohama’s Seya Ward, the Lab is using honey production and community collaboration to build a model of circular living—where people, nature, and…

May 15, 2025

Event

Memories embedded in school gym floor begin a new journey of circularity—exhibit and workshop at ”Yokohama Architecture Plaza 2024”[EVENTREPORT]

On November 9, 2024, Circular Yokohama participated in the “Yokohama Architecture Plaza 2024” held at the Yokohama City Hall. Circular Yokohama showcased unique items crafted from repurposed gymnasium flooring. Exhibition and workshop report at “Yokohama Architecture Plaza 2024” The “Yokohama Architecture Plaza 2024” was hosted at Yokohama City Hall. This event, organized by the Yokohama…

Apr 14, 2025

Announcement

Circular Yokohama is awarded the Grand Prize at the 31st Yokohama Environmental Activities Award

Circular Yokohama has been honored with the Grand Prize at the 31st Yokohama Environmental Activities Award for its contributions to advancing local environmental initiatives. About the Yokohama Environmental Activities Award The Yokohama Environmental Activities Award recognizes individuals, organizations, businesses, and students actively engaged in environmental initiatives in Yokohama. The award aims to raise awareness of…

Feb 27, 2025

Report

Circular Yokohama delivers a career education lecture at Yokohama Mine elementary school

On December 16, 2024, Circular Yokohama delivered a career education lecture to sixth-grade students at Mine elementary school in Hodogaya Ward, Yokohama City. The school actively promotes career education by inviting professionals from various fields, helping students envision their future paths. Mine elementary school is located just a 10-minute walk from Circular Yokohama’s activity hub…

Feb 7, 2025

Announcement

A Seminar: “Why Companies Should Embrace Nature Positive Practices: Building Cities in Harmony with Nature” held successfully

On November 28, Circular Yokohama held a seminar (in-person and online) titled “Why Companies Should Embrace Nature Positive Practices: Building Cities in Harmony with Nature.” Circular Yokohama is one of the operating companies in the Yokohama SDGs Design Center, a regional intermediary organization aimed at achieving the SDGs by connecting diverse stakeholders and addressing local…

Dec 17, 2024