Today’s story comes from the Times of India and was sent to me by Reporter-at-large Noelle Granger. Thanks Noelle

Meet Roy Kim, the 13-year-old Oregon student who designed a chamber that turns moisture in the air into water for drought-hit farms.

“Do what you can do tomorrow, today,” says Roy Kim, a 13-year-old Oregon student who has solved the water crisis for numerous farmers in the region. The teenager developed a device that turns moisture in the air into water, helping farmers access a sustainable and reliable water source in drought-prone areas, according to a report by Young Scientist Lab. As global warming continues, farming becomes increasingly difficult for farmers who rely on water to irrigate their crops. Most of the time, they rely on sources such as groundwater, surface water, and rainfall for this, but over the years, these sources can become depleted. This is why Kim created a device that uses the Peltier Module to turn moisture present in the air into water.

Understanding the module

Kim created a device that uses the Peltier Module to turn moisture present in the air into water.

According to Kim, a Peltier module creates a temperature difference when electricity is applied, making one side hot and the other side cold. “This allows warm air to cool rapidly when it reaches the cold surface, causing water vapor in the air to condense into liquid drops,” he explained. After multiple tests and improvements, Kim finalized the device’s design. The air enters the chamber through the hot side, where a heating element connected to a filter module warms it. The warm air then moves through the fan to the cold side. Water droplets formed here sink due to the temperature difference between the surface and the air.

The collected water then flows into a funnel and is distributed to the plants through a valve. To ensure the plants get the right amount of water, not too much, a soil moisture sensor is placed in the soil to determine when the plants need water. “In addition, temperature and humidity sensors monitor the environment, and if conditions become too extreme, they automatically adjust the airflow to maintain efficient water production,” said Kim. After testing, the device produced 10ml of water in two hours. Its highest efficiency was 135.8 g per kilowatt-hour. “Through this project, I didn’t just create water. I combined natural processes with engineering to develop a sustainable solution for farming,” he added.

Entering competition

Roy Kim, a student of Whitford Middle School in Beaverton, Oregon, entered the 3M Young Scientist Challenge, an annual top middle school science competition in the US run by 3M and Discovery Education, which challenges students in grades 5 to 8 to use problem-solving and innovation to fix everyday issues. When asked about why he wanted to enter the challenge, Kim said, “I entered the 3M Young Scientist Challenge because I wanted to showcase my invention to people around the world. If more people are aware of this problem and the potential solution, the problem might be able to de-escalate.”According to the US Department of Agriculture, between 2010 and 2020, agriculture was a major user of ground and surface water in the US, with irrigation accounting for 47% of the nation’s total freshwater withdrawals. Approximately 212,714 farms in the country depend on natural water sources for irrigation. But with Kim’s invention, the number can be decreased gradually. 15 years from now, he hopes to develop even more such solutions, as he wants to become a successful engineer who solves pressing problems across the globe, specializing in environmental engineering. He is currently among the top 10 national finalists in the challenge. The final event and winner announcement will take place on October 12-13, 2026.

The good news in this story is that an intelligent person converted known technology into a practical solution for water conservation. Today’s JohnKu talks about finding solutions. I hope you have a beautiful Weekend.

Answers by John W. Howell © 2026

When you need answers,

Investigate already knowns . . .

They may surprise you.

An uninhabited tropical island and its surrounding coral reef reflect the conservation project that has protected the area for decades. Image Credits: Wikimedia Commons.

Today’s good news story comes from the Times of India. Thank you to Noelle Granger for sending it to me.

In 1991, German development worker Sibylle Riedmiller invested her savings in an uninhabited island; three years later, its reef became a protected sanctuary.

In April 1991, Sibylle Riedmiller was sailing around Zanzibar when she came across an uninhabited island surrounded by a shallow coral reef. What she saw was unusual for the region: a largely intact marine ecosystem at a time when destructive fishing, including dynamite fishing, was damaging reefs along the Tanzanian coast. Rather than seeing Chumbe Island as an untouched paradise, the German development worker saw an opportunity to protect it. She put her own money into the idea of creating a conservation project that could eventually support itself through carefully managed tourism. According to Marine Policy, Chumbe Island Coral Park Ltd. (CHICOP) negotiated with the Zanzibar government between 1991 and 1994 to have the island’s western coral reef and forest cover gazetted as a protected area. On December 24, 1994, the reef sanctuary was formally designated as a no-take area, prohibiting fishing and other extractive activities, with management entrusted to CHICOP.From an uninhabited island to a protected reef. Riedmiller had arrived in Tanzania in the early 1980s as an aid worker involved in education projects. By the time she reached Zanzibar, she had developed a strong interest in the region’s marine environment.

She was particularly concerned by the destruction caused by fishing practices and by the limited public understanding of coral reefs. According to the IUCN, Sibylle Riedmiller found Chumbe Island on April 21. The uninhabited island contained a fringing coral reef, seagrass beds, a mangrove cave and coral-rag forest, along with a historic lighthouse and abandoned buildings. Restrictions on access and fishing, linked partly to the island’s former military use, had helped keep its terrestrial and marine ecosystems relatively undisturbed, making Chumbe a suitable site for protection. Riedmiller’s idea was not simply to put a fence around the island. She proposed a model in which tourism would generate income for conservation and environmental education. This meant creating an organization capable of managing the protected area while also developing a small, low-impact tourism operation. A no-take reef backed by tourism. The protected area gave the reef stronger protection than neighboring waters. The sanctuary covers roughly 30 hectares of reef and associated marine habitats, while the island itself contains a protected forest reserve. Marine Policy also notes that Chumbe is Tanzania’s first managed marine park and one of the earliest examples of a privately established and managed marine protected area. The study noted that the sanctuary was legally designated as a no-take area, meaning fishing and other extractive uses were prohibited. But protection required people to enforce the rules. One of the project’s important decisions was to recruit and train local fishers as park rangers. They knew the surrounding waters, understood local fishing practices, and could communicate with other fishing communities. The approach also gave former fishers alternative employment and placed local people at the center of reef protection. The project eventually added an education center and a small ecolodge. The buildings were designed around environmental principles, including solar power, rainwater harvesting, composting toilets, and wastewater filtration systems. Ecotourism began in 1998, with visitor revenue supporting conservation management and educational programs rather than private profit.

Chumbe Island is surrounded by the turquoise waters and coral reefs of the western Indian Ocean. Image Credits: Wikimedia Commons.

Protecting the reef by teaching people about it. Conservation at Chumbe was never limited to protecting the reef. Environmental education became an important part of the project, with local schoolchildren visiting the island to learn about coral reefs, seagrass, forests and marine life. Teachers were also involved so that lessons about the marine environment could extend beyond the island. According to a study published in the Journal of Ecotourism, Chumbe Island Coral Park combines ecotourism with marine conservation and environmental education, while using a low-impact approach to minimize pressure on the island’s natural environment. The model was designed to generate income from tourism while supporting the management of the protected area. The reef remains at the center of the project, but Chumbe’s protected environment extends beyond coral. The island also contains seagrass beds, intertidal habitats, and a coral-rag forest, forming a broader ecosystem managed alongside the marine sanctuary. Riedmiller’s investment grew into a conservation model built around three activities: protecting the island and surrounding waters, educating local communities and visitors, and using carefully managed tourism to help fund the work.

The good news in this story is that one person turned a deserted island into an eco-tourist destination that benefits the island and surrounding area. Today’s JohnKu talks about one person making a difference. I hope you have a beautiful week.

Commitment by John W. Howell  © 2026

One saw the vision,

Enlisted more commitment . . .

Paradise is born.