Indian Teen Scientists Win Earth Prize for Natural Microplastic Filter
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Three 16-year-old students from India have won a major international environmental award for inventing a low-cost, natural agent that clumps microplastics out of water. Their 'Plas-Stick' system uses powdered tamarind seed and a magnet, requiring no electricity. The team will use the $100,000 prize to scale production and bring the solution to rural communities.
Facts First
- Team Plas-Stick, three 16-year-old Indian students, won Asia Winner of The Earth Prize 2026 for their invention.
- Their 'Plas-Stick' agent uses powdered tamarind seed to bind invisible microplastics into clumps removable with a magnet.
- The system requires no electricity or complex infrastructure and is designed as a low-cost alternative for shared water containers.
- The award includes a $100,000 prize to develop the invention.
- The team intends to scale the solution through decentralized production hubs for rural communities in India.
What Happened
Vivaan Chhawchharia, Ariana Agarwal, and Avyana Mehta, a 16-year-old science team from India, have been named the Asia Winners of The Earth Prize 2026 for their invention 'Plas-Stick'. The invention is an all-natural microplastic clumping agent made from powdered tamarind seed. When added to water and agitated, the powder binds microplastic particles into visible clumps, which can then be removed using a handheld magnet. The Earth Prize award includes a $100,000 check to support the development of Plas-Stick.
Why this Matters to You
Microplastics... have been found everywhere from the summit of Mount Everest to human organs like the brain and placenta, where they act as endocrine disruptors. Plas-Stick offers a potential, accessible tool to address this pervasive contaminant in drinking water, especially for the over 2.2 billion people globally who lack safely managed water infrastructure. If you are concerned about environmental pollutants, this development represents a tangible, low-tech innovation that could improve water safety.
What's Next
With support from The Earth Prize, Team Plas-Stick intends to scale their solution by establishing decentralized production hubs to expand access to rural communities across India. The invention's reliance on tamarind... could facilitate local production and adoption.