Qatar to install outdoor air conditioning to reduce temperature!

The blue roads help to lower the temperature because dark-coloured roads absorb the heat form the sun more than lighter ones, which reflect it.The 18-month-long experiment is on a 650-foot (250m) stretch of road and uses a 0.003ins (1mm) thick blue coating with a special heat-reflecting pigment.It also contains hollow ceramic microspheres which are designed to reflect infrared radiation.