Three 16-Year-Olds Just Solved Microplastics With Kitchen Spice

When Vivaan Chhawchharia, Ariana Agarwal, and Avyana Mehta set out to tackle one of the planet’s most pervasive invisible threats, they didn’t head to a laboratory. They walked into their kitchen.

The three 16-year-olds from India have just won the Asia Prize for The Earth Prize 2026, a $100,000 award recognizing their invention of Plas-Stick — a biodegradable powder made from tamarind seeds that clumps microplastics into visible, removable particles. Here’s what makes it genuinely brilliant: after a few minutes of agitation in water, you pull out the contaminated clumps using nothing but a magnet. No electricity. No complex infrastructure. No expensive filtration systems. Just an agricultural crop already woven into South Asian food culture.

The scale of the problem they’re addressing is staggering. Microplastics — particles ranging from one-millionth to one-thousandth the width of human hair — are everywhere. Scientists have found them at the peak of Mount Everest and the floor of the Mariana Trench. They’re lodged in human organs and tissue, including the brain and placenta. They act as endocrine disruptors, interfering with hormonal systems we still don’t fully understand. And over 2.2 billion people globally lack safely managed drinking water infrastructure, meaning stored water is often their only option — water that may be silently contaminated.

What sparked the trio’s solution wasn’t a lab accident or a calculated hypothesis. It came from environmental science coursework combined with a visit to a rural community, where they witnessed firsthand how shared water containers sit untreated, vulnerable to invisible pollution. That gap between knowledge and real-world access became their starting point. They weren’t inventing for a thesis; they were solving for actual people in actual villages.

The fact that the answer came from tamarind — a crop that thrives wild and is already cultivated throughout South Asia — reveals something important about innovation. Sometimes the most elegant solutions aren’t hidden in patents or cutting-edge chemistry. Sometimes they’re waiting in the spice rack, ready to be reimagined. With The Earth Prize’s backing, the team plans to scale Plas-Stick through decentralized production hubs across India, bringing safer drinking water within reach of communities that need it most. Three teenagers just proved that the tools to solve environmental crises don’t always require a PhD — sometimes they just require curiosity and the willingness to look where others haven’t thought to look.