Researchers from Purdue University in the U.S. have developed an ‘ultra-white’ paint, which when painted onto buildings, can reflect the sunlight falling on them and lower the temperature indoors by 4.5 degrees Celsius than the surroundings. They say this can alleviate global warming on two counts; by reducing carbon emissions from air conditioners, and driving the sun’s incoming heat away to outer space – a principle called radiative cooling.The able to achieve this by adding Barium sulfate(BaSO4) to acrylic paint, imparting a reflectance of 98.1%. This marked an improvement over the...…Researchers from Purdue University in the U.S. have developed an ‘ultra-white’ paint, which when painted onto buildings, can reflect the sunlight falling on them and lower the temperature indoors by 4.5 degrees Celsius than the surroundings. They say this can alleviate global warming on two counts; by reducing carbon emissions from air conditioners, and driving the sun’s incoming heat away to outer space – a principle called radiative cooling.The able to achieve this by adding Barium sulfate(BaSO4) to acrylic paint, imparting a reflectance of 98.1%. This marked an improvement over the...WW…