Los Angeles Tests Cooling Pavement Paint to Combat Climate Change
Can a splash of grey pavement paint help combat global warming?
In Los Angeles, where summer temperatures regularly surpass 100 degrees Fahrenheit (38 degrees Celsius), workers are coating streets in special gray treatments in a bid to do just that.
The City of Angels, home to four million people, is the first major city to test the technology.
Normal black asphalt absorbs 80 to 95 percent of sunlight, while the grey "cool pavement" reflects it — dramatically lowering ground temperature and reducing urban street heat, advocates of the method say.
Tom Wachtel
