当雾霾天多了起来,社区和单位的低碳公益活动多了起来,低碳理念已经走进人们生活。最近生活中有一些小变化:居住的小区楼房在去年冬天到来之前都实施了外墙保暖层覆盖工程;北京的地铁涨价了,由原来的全程两元到三元起步、分段计价。这些都与低碳相联系,一个是能源效益提升改造,冬天取暖达到规定的温度可以少烧点煤,而在中国煤炭燃烧是二氧化碳排放的主要来源。一个是北京市削减了化石 When the hazy days rise, communities and units have more low-carbon public welfare activities and the low-carbon concept has entered into people’s lives. There have been some minor changes in recent life: living in residential buildings before the arrival of winter last year have implemented the outer wall insulation covering projects; Beijing’s subway prices, from the original full two yuan to three yuan start, sub-pricing. These are linked to low-carbon, one is to upgrade energy efficiency, winter heating to achieve the required temperature can burn less coal, and coal combustion in China is the main source of carbon dioxide emissions. One is that Beijing cut its fossils