精品文档---下载后可任意编辑全球变暖的英文演讲稿作文 5 篇 全球变暖的英文演讲稿作文 1 I often see on television, network is now the holes of the earth has been destroyed by human, if we are in different heart to protect it, the destruction of the earth will be completely in the near future. Faster and faster, with the development of human science and technology science and the negative effect gradually manifested, then let me give you a few examples to illustrate why experts predicted that the earth will be gone after so many years. First of all, global warming is one example, soak in the hot weather in summer air conditioning becomes a new hobby , but what do people ever thought of air conditioning can bring negative effect? Gas air conditioning to contain large amounts of methane, to the outside is the leading cause of global warming gases, methane and air conditioning will waste a lot of electricity, so try to avoid using the air conditioning or appropriate use. Another reason is that carbon dioxide, automobile exhaust and factory waste gas containing a large amount of carbon dioxide, and carbon dioxide are most likely to lead to global warming. Cars now, too much 精品文档---下载后可任意编辑exhaust serious affect our nong cough, throat inflammation... . According to concerning sectional statistic Chinas per capita emissions of carbon dioxide emissions every year 2. 51 tons a year! The changes in the harsh environment around us. More important reason is that: reduce forest, farmland, water damage and serious water pollution, fresh water supply is a problem, many parts of the draft has become a big problem. Now countries are massive effort, demanding, and costs of the south-north water diversion...
