精选优质文档-倾情为你奉上当今世界，环境保护已成为各国政府和各界人士共同关心的问题。过去10年，海平面升高和森林砍伐的速度都是前所未有的；生态恶化、物种灭绝、臭氧层被破坏、温室效应、酸雨、土地沙漠化等一系列环境问题已经严重影响到人类的生存环境和身体健康。Nowadays, environmental protection has become the common issue that concerns the governments of many countries and people of all walks of life. Sea level rose and forests were destroyed at an unprecedented rate during the last decade. A series of environmental problems, such as the deterioration of the ecosystem, the extinction of bio-species, damage to the ozon
