With the development of economy, more and more greenhouse gases are being discharged into the air. CO2 makes up about 70% of the greenhouse gases, which is considered to be one of the greatest causes of global warming. It has harmful effects, causing the sea level to rise and many natural disasters to strike. From Joozone-com
So we must take effective measures to save our pl***. First, we should use more clean energy and less coal and oil. Second, we should go to work on foot or by bus instead of driving a car if possible. Third, we should plant more trees, because plants can turn CO2 into oxygen. More importantly, we should form the habit of saving energy in our daily life.
作文地带提供参考翻译：
随着经济的发展，越来越多的温室气体排放到了空气当中。温室气体中70%是二氧化碳，二氧化碳被认为是导致温室效应的最主要的原因之一。这将产生很坏的影响，比如海平面的上升和其它许多自然灾害的发生。
所以我们必须采取有效措施来保护我们的地球。首先，我们应当使用清洁能源减少使用煤和油。来源:作文地带
其次，我们应该尽可能的徒步或者坐公交去上班而不是开小汽车。第三，应当种植更多的树木，因为树木能够将二氧化碳转化为氧气。更重要的是，我们应当在日常生活中养成节约能源的好习惯。
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