社会经济在飞速发展,环境问题变得越来越突出。人们以为地下水可以一直源源不断的抽出来,煤矿可以永远开采下去,蓝天可以无限制的容纳我们排出的汽车尾气和燃烧的废气……那就错了!恶劣的环境不仅会使水、森林、生物、大气无法再生,而且还会引发一系列生态灾难,给人类生存带来严重的威胁。 The rapid development of social economy, environmental issues have become increasingly prominent. People think that underground water can be continuously extracted, the coal mine can be mined forever, and the blue sky can limitlessly accommodate the exhaust of our cars and the combustion of exhaust gas ... that’s wrong! The bad environment not only makes water, forests and creatures , The atmosphere can not be regenerated, but it will also lead to a series of ecological disasters that pose a serious threat to human existence.