对“绿色就是生命，绿色就是希望”这句话，亲身经历过７０年代末北京黄沙蔽日、尘土飞扬的人最能品出其中的滋味。那时的北京，“每年一场风，从春刮到冬”，灰蒙蒙的天压得人心头沉甸甸。１９７９年新华社播发了文章《风沙紧逼北京城》，那时，北京生态环境十分恶劣，老... On the “green is life, green is hope,” this sentence, personally experienced the late 70s Beijing yellow sand sheltered, dusty people most taste out of the taste. At that time in Beijing, “every year a wind blows from the spring to the winter,” the graying pressure was heart-heavy. Xinhua News Agency broadcast an article in 1979, “Wind and sand pressed Beijing city”, then, Beijing’s ecological environment is very poor, old ...