一、前言当今世界经济迅速发展 ,环境保护已成为各国政府和人民关注的热点。人类赖以生存的地球面临严重威胁 ,如温室效应 ,臭氧层消失 ,水污染 ,海洋污染 ,酸雨 ,森林面积减少 ,土壤沙漠化 ,物种灭绝以及有毒废弃物的处理等。人们通过对全球环境遭受破坏的反思 ,对环境保护的 I. Preface The rapid economic development in the world today and the protection of the environment have become the focus of attention of governments and people of all countries. Human beings are facing serious threats to the Earth, such as the greenhouse effect, the disappearance of the ozone layer, water pollution, marine pollution, acid rain, reduced forest area, soil desertification, species extinction and the disposal of toxic waste. People through the destruction of the global environment to reflect on the protection of the environment