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

On 2025/8/5

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. […]

Kurofune Soap: Crafting Clean Futures from Used Cooking Oil

On 2025/6/6

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 […]

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

On 2025/6/3

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 […]

Coffee Grounds Art: Giving New Life to the Morning Brew

On 2025/5/22

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.

Yomigaeri: Recycled Work Gloves Made Primarily from Used Clothing Fibers

On 2025/5/19

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., […]

Light Up Your Language Skills: Crafting and Cultural Exchange Workshop! [EVENT REPORT]

On 2024/8/8

On July 20, 2024, Circular Yokohama hosted a language exchange event, “Crafting in English! Let’s Make Lanterns with Discarded Aluminum can,” at its office / showroom “qlaytion gallery.” The event gathered 15 participants, ranging from children to adults, who enjoyed a creative and conversational experience in English. About “Meguru Hoshiten English Cafe” Meguru Hoshiten English […]

National Sun Yat-sen University’s Study Tour on Yokohama’s Decarbonization Initiatives

On 2024/7/30

From July 11 to 12, 2024, a delegation from Taiwan’s National Sun Yat-sen University (hereinafter NSYSU) visited Yokohama for a study tour focused on local decarbonization. This open program, organized by NSYSU, included 14 master’s and doctoral students specializing in public administration, accompanied by two academic staffs. Discussion on Decarbonization with Harch Inc. The tour […]

Vol.2: UNDP Philippines Delegates’ journey into Japan’s Circular Economy [EVENT REPORT]

On 2023/9/26

Circular Yokohama welcomed the “UNDP PHILIPPINES – JAPAN LEARNING EXCHANGE ON CIRCULAR ECONOMY FOR LOCAL GOVERNMENTS.” We hosted 14 delegates and 2 UNDP members from the Philippines between June 25 and 30, 2023. This article reports on the latter half of the five-day journey in Tokyo. The tour was co-hosted by Circular Yokohama and Zenbird. […]

Circular Yokohama, Harch inc., became a B Corporation™

On 2023/5/10

An overall score is 101.3. It was highly rated for its commitment to community and employees Harch Inc. (Chuo-ku, Tokyo; CEO: Yu Kato), a company with the mission of “Publishing a better future” and running Circular Yokohama and other eight web medias to pushing the world sustainability forward, received the B Corporation™ Certification, an international […]

Circular Yokohama participated in event “Minato Mirai Circular Weekend – Everyone, try to decarbonize!”

On 2023/4/24

Circular Yokohama participated in the event “Minato Mirai Circular Weekend – Everyone, try to decarbonize!” on March 24th and 25th. On the day of the event, we ran various programs on site. This event was the first event of the Minato Mirai Circular City Project, a Yokohama City project to promote the decarbonization of the […]

“Yokohama Local Circular Economy Seminar Vol.2” on Feb 27th

On 2023/3/23

Circular Yokohama held the event “Yokohama Local Circular Economy Seminar Vol.2: Southern Part ‘Regional Circulation Created with Children’” on February 27. The event was held in collaboration with NPO Yokohama Community Design Lab and YOKOHAMA Living Lab Support Office. The Yokohama version of the Circular Economy Seminar is a series of three special seminars designed […]

Circular Yokohama’s capsule toy machine lets you put PET bottle caps to win local circular goods

On 2023/3/10

Circular Yokohama has created “Circular Gacha,” a capsule toy machine that visitors can play with by inserting PET bottle caps, with the aim of creating opportunities for people to enjoy experiencing regional and resource recycling. The capsules that serve as prizes contain recyclable goods manufactured by businesses in Yokohama City, and visitors can obtain one […]

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