现在已经进入8月,正式进入了暑期。在这个季节,一个特别严重的问题是城市的气温上升,即所说的“热岛现象”。为此,一些为道路和建筑物降温的新技术接连登场,引起了人们的关注。东京的“热带夜”(最低温度不低于25℃)数量几乎是30年前的两倍,给城市降温已经成为当务之急。 Now entered in August, officially entered the summer. A particularly serious problem this season is the rise in temperature in the cities, the so-called “heat island phenomenon.” To this end, a number of new technologies for cooling the roads and buildings appeared one after another, has aroused people's attention. Tokyo “Tropical Night” (the minimum temperature of not less than 25 ℃) almost double the number of 30 years ago, cooling the city has become a top priority.