In a global scenario marked by the climate crisis and desertification, a 14-year-old Chinese teenager surprised the world with an invention as simple as it is ingenious: a condensation irrigation system designed to help newly planted trees survive in arid areas of northern China.
The young Jia Mingxuan, from Inner Mongolia, used steel pipes bought at a hardware store and reused plastic bottles to build a device capable of capturing moisture from the air and directing it directly to the roots of the trees. His proposal earned him the gold medal at the 77th edition of iENA, one of the most prestigious invention fairs in the world.
An invention born from everyday observation
The inspiration came in the family kitchen when Jia observed how water vapor turned into droplets on the cold tiles. This phenomenon of condensation became the basis of his design: a tube with a temperature gradient and an upper cap that allows air circulation driven by the wind.
The moisture present in the environment, even in dry areas, condenses inside the tube and drips towards the tree’s roots. All this without pumps, external tanks, or electricity.
International recognition and cultural symbol
The jury, headed by Oliver Mayer, highlighted the application of basic physical principles in a context where desertification remains a threat.
The image of Jia receiving the award dressed in a traditional Mongolian robe resonated as a cultural symbol and as a representation of a generation seeking practical solutions to urgent environmental challenges.
Context: China’s Great Green Wall
Jia’s story is set in Chifeng, a key area within the Great Green Wall Program of Northern China, considered the largest reforestation effort on the planet.
His grandfather recalls a nearly lunar landscape in the sixties: dunes shifting with the wind, bare soils, and just 380 mm of rain per year. Today, more than 40% of the county is covered by forests, although the ecosystem’s fragility persists.
Current projects combine reforestation with photovoltaic installations, which reduce evaporation and generate clean energy. However, thousands of saplings die each season because watering them manually is slow, expensive, and unfeasible in remote areas.
Perseverance and community support
To perfect his irrigation system, Jia had to travel 30 km each time he wanted to measure humidity, getting up even at 4 a.m. This perseverance caught the attention of his community before the international award.
Veterans like Chen Xuexun, with over 34 years dedicated to sand control, see young inventors like Jia as a sign of generational handover in the fight against desertification.
Youth innovation and the future of the device
Currently, Jia is working with a research team in Shanghai to improve the device’s stability and explore more durable materials, such as bioplastics or lightweight alloys, to allow large-scale production without increasing the environmental footprint.
His invention fits into the model of Aohan Banner, a national pilot zone for reforestation guided by digital technologies, where systems based on Beidou, moisture sensors, and remote analysis are used. Jia’s device complements these high-tech solutions with a low-cost and easy-to-implement alternative.
Global impact of local solutions
Jia’s invention is part of an unstoppable trend: local, simple solutions with strong territorial roots. In a global context where droughts are more frequent and ecosystem restoration is a climate priority, technologies like this could:
- Facilitate reforestation in isolated or hard-to-access areas.
- Support community projects with limited resources.
- Provide alternatives for countries facing desertification, from the Sahel to southwestern Europe.
- Promote youth innovation as a driver of new responses to climate change.
The idea born in a kitchen in Inner Mongolia not only solves a practical problem: it demonstrates that the ecological transition needs creativity, curiosity, and courage.
Jia Mingxuan’s irrigation system is a reminder that the most powerful solutions can arise from observing the everyday —a few simple drops on a wall— and transforming it into an opportunity to care for the earth and ensure the future of forests.
