God created us and we created pollution. Pollution is a by-product of our everyday life, especially the activities involved with economic aspects. Every economic activity in human society always tends to produce a certain quantity of pollution. The fact that economic activities inevitably lead to pollution will not be a problem by itself, since the great nature possesses certain capability of self-regulation and self-purification. However, pollution occurring beyond the limit of nature cannot be controlled …showed first 75 words of 1295 total…

…showed last 75 words of 1295 total…of the scientific assessment working group of the intergovernmental panel on climate change, explicitly described the danger of global warming by saying, "... The inputs of global warming are such that I have no hesitation in describing it as a 'weapon of mass destruction'" [13]. As he analogize it to weapon, global warming can be very dangerous as it cause abrupt changes of climate, which were cause of the previous mass extinction of species such as dinosaurs.