Answer: Supriya Sahu
Notes: UN Environment Programme (UNEP) awarded IAS officer Supriya Sahu the 2025 UN Champions of the Earth award in the Inspiration and Action category. She was honoured for her long-standing leadership in plastic reduction, wildlife conservation, and especially sustainable cooling. Her key initiative, Tamil Nadu’s Cool Roof Project, lowered indoor temperatures by 5–8°C using high Solar Reflective Index paint, offering a low-cost cooling solution. UNEP called it a game changer for cities facing extreme heat, showing scalable climate action.
