Are you treating the world's water problems as something distant or unrelated to you? Throughout our research, we realized that these issues are connected to many other challenges in ways we may not notice at first. If you continue to see them as someone else's responsibility, progress may remain slow. We hope this video encourages you to think about what we can do and helps make these global issues feel a little closer.

Inspired by the questions in Rachel Carson’s Silent Spring, we must face the reality that pesticides and everyday chemicals move through the environment and eventually return to us as “water.” When the hidden waterways linking homes and nature are damaged, changes like those in the town where spring fell silent can occur. Water is more than a resource—it reflects our relationship with nature. As technology advances, we should remember its importance and the need to live in harmony with the natural world.

In Hokkaido, we have beautiful nature and rich water source. But it also means that we have to face water disaster like tsunami and flood. But it also can be dangerous for us. Through our video, we suggest the co-existing life with water with the example of green infrastructure.

Listening to a radio broadcast about “water wars” made me realize that the growth of AI industries like ChatGPT and Google Gemini, as well as the semiconductor industry, could lead to serious water shortages and even conflicts over water. I wanted more people to be aware of this possibility, so I created this video. By showing examples such as companies competing for water sources and the huge amounts of water used in these industries, the video encourages high school students like us to start by “seeking to understand” the issues behind the technology we rely on.

There is a large flood-control place in our neighborhood. It is Nissan Stadium, which is usually used for soccer games and concerts. During the typhoon in September 2021, it held a lot of rainwater and helped prevent flooding. We visited the Metropolitan Area Outer Underground Discharge Channel, the most famous flood-control facility in Japan, to learn about how floods are prevented. We also interviewed the Ministry of Land, Infrastructure, Transport and Tourism to understand more. To share the importance of flood control with more people and to help them learn how a flood-control basin works, we made a small game in our own technical high school style. In the video, we introduce both flood control and the game we created.

Learn about water conservation through a fun card game! This video introduces an innovation method that transforms a serious topic into engaging play, inspiring participants to proactively cosider the challenges of water resources.

The Miyazu Tenkyo High School Field Research Club is a club that conducts nature surveys of the Otegawa River. They introduce the changes to the ecosystem caused by repairs after the typhoon, and explain "Barb construction," which creates an environment with different flow speeds that allows a variety of fish to coexist. They visualize changes in the flow through experiments using "human barbs" made by people sitting down and toy ducks, and also call for the importance of safety precautions when playing in the river.

This video explores the reality faced in developing countries where access to safe water remains extremely limited. In many regions, civil conflicts have damaged water systems and contaminated wells, turning water　something meant to sustain life　into a daily danger. Through my research, I realized that providing wells alone cannot solve the problem. What truly matters is building sustainable systems that enable local communities to maintain, repair, and protect their own water sources over time. This video summarizes my exploration of why water must be secured not only through outside support but also through community-led efforts. It highlights the importance of protecting water as an essential element that shapes people's health, dignity, and future.

For their summer project, Coco, who loves to cook, and her friend Momo-chan decided to test the idea, "What happens if you use drinks other than water to make pancakes?" They invited three friends over and began their experiment. They tried grape juice, cola, and coffee. Seeing that everything except the cola turned out delicious, Nat-chan, who was cleaning up, wondered why water was necessary. When Coco explained that without water, you can't make drinks or cook, everyone realized the importance of water, sparking thoughts about saving it.

Water we use every day without a second thought—when we touch it, drink it, or use it. Today's high school students often show little interest in their local water. Yet occasionally, they notice why the water in their hometown (Kumamoto) is so remarkably pure. Now, these students are actively researching Kumamoto's water systems themselves and broadening their perspective to include products made using Kumamoto's water. They're realizing that water, though seemingly commonplace, is essential for life—learning that water is the invisible protagonist.

The “small” and “large” buttons—dual flush toilets that everyone sees every day.This video invites viewers to rethink their relationship with water, starting from this “ordinary choice.”Some people consciously choose, while others don’t.Through bar graphs and experiments, the video visualizes how much water is wasted by these small differences.The camera also focuses on “everyday waste,” such as handwashing habits, cleaning routines, and the use of buckets.By revealing these overlooked actions, the video encourages viewers to recognize the impact of small behaviors and rethink sustainable water use in daily life.

High school students dress as aliens to convey the importance of water culture.This video invites viewers to rethink their relationship with water, starting from this “ordinary choice.”Some people consciously choose, while others don’t.Through bar graphs and experiments, the video visualizes how much water is wasted by these small differences.The camera also focuses on “everyday waste,” such as handwashing habits, cleaning routines, and the use of buckets.By revealing these overlooked actions, the video encourages viewers to recognize the impact of small behaviors and rethink sustainable water use in daily life.

Exploring the water sources of Aso while discussing water culture
This video invites viewers to rethink their relationship with water, starting from this “ordinary choice.”
Some people consciously choose, while others don’t.
Through bar graphs and experiments, the video visualizes how much water is wasted by these small differences.
The camera also focuses on “everyday waste,” such as handwashing habits, cleaning routines, and the use of buckets.
By revealing these overlooked actions, the video encourages viewers to recognize the impact of small behaviors and rethink sustainable water use in daily life.

High school students build a plastic bottle fountain and play in the water.This video invites viewers to rethink their relationship with water, starting from this “ordinary choice.”Some people consciously choose, while others don’t.Through bar graphs and experiments, the video visualizes how much water is wasted by these small differences.The camera also focuses on “everyday waste,” such as handwashing habits, cleaning routines, and the use of buckets.By revealing these overlooked actions, the video encourages viewers to recognize the impact of small behaviors and rethink sustainable water use in daily life.