Scientists have unveiled a white paint that can reflect the sun’s rays off the Earth’s surface, which could help cool the planet. Dr Xiulin Ruan – a mechanics engineering professor at Purdue ...

Purdue University scientists have created an ultra-white paint that does just that. The paint allows the surface to shed the sun’s heat and cool itself down without needing any extra energy.

The ultra-white paint, recognised last year as the world’s whitest by Guinness World Records, “has plenty of competition from other researchers”, said Scientific American, but manufacturers ...