当前,环境污染是世界各国普遍存在的问题,它严重威胁着人类的生存。世界各国的政治家、科学家和经济学家纷纷指出:“环境污染与破坏是人类面临的除核战争成胁之外最重大的问题。”“我们只有一个地球。”“我们再也不能熟视无睹、麻木不仁 At present, environmental pollution is a ubiquitous problem in all countries of the world and it seriously threatens the survival of mankind. Politicians, scientists and economists all over the world have pointed out: “Environmental pollution and destruction are the most important problems facing mankind except the threat of nuclear war.” “We have only one earth.” "We can no longer ignore it, insensitive