The Times of India

Meet the Indian teens who won $12,500 for building a salt-powered refrigerator after COVID-19 exposed vaccine storage challenges in villages without electricity

In a remarkable feat of innovation, three teenagers from Indore created Thermavault, an eco-friendly cooling box powered by salt. This groundbreaking device eliminates the need for electricity or ice to keep vaccines at optimal temperatures. Recognized with the prestigious 2025 Earth Prize in Asia, the trio plans to use the prize money to construct 200 units for testing in hospitals, significantly improving vaccine accessibility in underserved regions.