以空气污染为主题的英语作文
导语：排放的气息，是乌云盖天的狂欢;森林的骤减，是沙漠扩展的心愿;灾难的增多，是人们造就的劫难。下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!
air pollution
Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment. Air pollution causes deaths and respiratory disease. Air pollution is often identified with major stationary sources, but the greatest source of emissions is mobile sources, mainly automobiles. Gases such as carbon dioxide, which contribute to global warming, have recently gained recognition as pollutants by climate scientists, while they also recognize that carbon dioxide is essential for plant life through photosynthesis.
The atmosphere is a complex, dynamic natural
