Three sixteen-year-olds in India have won this year's Earth Prize. The award is for solutions to eco-challenges. The three teenagers invented a special powder made from tamarind seeds. A tamarind is a tropical fruit. Microplastics in water stick to the powder. The microplastics and powder are then removed from the water with a magnet. The powder is a simple, cheap way to make water safer to drink in poor and rural areas.

The powder is called 'Plas-Stick'. The teenagers were very happy to win the award. They said it was "incredibly special for all of us". They explained that microplastics hide in our drinking water. They said their powder acts like a magnet for these microplastics. The collected plastic is turned into useful items "so it can't return to nature". The powder will protect people, animals, and our planet from microplastic pollution.