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

On 2026/1/6

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, […]

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

On 2026/1/5

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 […]

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. […]

Regenerative Kelp Farming for Blue Carbon in Yokohama

On 2022/6/11

Trees have the ability to absorb CO2, but did you know that kelp has similar powers too? Kelp can absorb five times as much CO2 as cedar, plus it can grow up to four meters in just four months! Such hidden powers didn’t get unnoticed by Sachiumi Heroes director Tatsunori Tomimoto. Since 2015, Tomimoto has […]

【Monthly Update: February, 2022】Yokohama’s Youths are Intensely Learning Circular Economy

On 2022/3/9

The calendar tells us that the winter is over. That means the season of Sakura is coming up very soon here in Japan. This February, we had several opportunities to cooperate with local schools and universities. As we referred to in the last update, we aim to support sustainable education locally in 2022. Here we […]