北京：植树能否对抗雾霾？
城市森林在改善城市居住环境方面起着重要作用，不仅能够降低城市温度，还能减少污染。
Planting forests across Beijing could help combat pollution
Urban forests can play an important role in making cities nicer places to live and have cooling, pollution-reducing effects, says Jun Yang, from the Center for Earth System Science at Tsinghua University
