🎨 Scientists Create the World’s Whitest Paint to Combat Climate Change

In a breakthrough that could reshape how we cool our homes and cities, researchers at Purdue University have developed the world’s whitest paint, capable of reflecting over 98% of sunlight—far surpassing the 80–90% reflectivity of regular white paints.

This ultra-white paint isn’t just bright—it’s cooling. Tests reveal that coating a 1,000 sq ft roof with it can produce a cooling effect equal to a 10kW air conditioner, without consuming any electricity. That means cooler buildings, lower energy bills, and a lighter load on power grids.

🌞 How This Paint Works Like a Natural Air Conditioner

The secret lies in barium sulfate particles of varying sizes. These particles scatter sunlight across the entire spectrum, sending most of it back into space instead of absorbing it as heat. This powerful reflective ability keeps surfaces several degrees cooler than their surroundings, even under blazing sunlight.

According to Purdue University’s official report, this paint can even cool surfaces below ambient air temperature, making it an effective passive cooling solution for buildings in hot climates.

If you’re curious about other game-changing innovations, check out our Tech category on Prime Curators for more breakthroughs.

🌍 Cooling the Planet

Scientists estimate that painting just 1% of the Earth’s surface with this reflective coating could significantly slow global warming by reducing the amount of heat the planet absorbs.

Commercial production is already underway, raising hopes that this innovation will cut greenhouse gas emissions, lower urban heat, and make cities more livable.

This is a clear example of how simple ideas, backed by science, can have planet-sized impacts.