with the economic development, our lives become cosier. we can enjoy our comfortable lives. but do you know how things we use are produced?people produce ? and do you know where the material is from? it is from our mother, the earth. for example, we get fossil oil and coal from underground., they are the wealth that earth gives us. but at the same time human destroy the world, destroy our hometown.

　　what do we cause? global warming,ozone depletion, acid deposition and so on. because of these, th eearth becomes weaker and weaker.

　　the most serious problem is global warming. it means the air temperature rises around the world, the result of global warming is that glacier melts which leads to sea level rises .sea level rise may cause many dangerous things, such as drowning towns and villages, some small island countries are even in danger of being drowned. global warming damages human being, and also the earth. now everyone believes that mitigating global warming is urgent.

　　what should we do? our duty is to reduce carbon emission. firstly, we should choose a low-carbon life. for example, people can walk to offices and schools instead of driving a car. secondly, planting trees is a good and simple way. if everyone plants a tree every year, six billion trees will be planted in a year. how great it is! how clear air will be! thirdly, we should tell everybody the importance of living a simple life. let people act now.

　　you see, saving the earth isn’t difficult.if everybody makes a bit of change, our mother earth will smile at you.

　　随着经济的发展，我们的生活变得cozier。我们可以享受舒适的生活。但是你知道如何使用的东西，我们生产的呢?人生产?那你知道哪里有物质从?这是从我们的大地母亲。例如，我们可以从地下化石的石油和煤炭。，他们是财富，地球给我们。但在同一时间摧毁人类的世界，破坏我们的家乡。

　　我们的事业是什么?全球变暖，臭氧层破坏，酸雨等。由于这些，钍eearth变得越来越弱。

　　最严重的问题是全球变暖。这意味着世界各地的气温上升，全球变暖导致冰川融化是导致海平面上升。海平面上升可能造成许多危险的事情，如城镇和村庄淹没，一些小岛屿国家甚至处于危险之中被淹死。全球变暖损害人类的福祉，也是地球。现在大家都认为，减缓全球变暖是紧迫的。

　　我们应该怎么办?我们的责任是减少碳排放。首先，我们应该选择低碳生活。例如，人们可以步行到办公室，而不是驾驶汽车学校。其次，种植树木是一个很好的和简单的方法。如果每个人每年种树，六个亿棵树将种植在一年内。这是多么伟大!如何清除空气会!第三，我们要告诉大家一个简单的生活生活的重要性。让人们立即采取行动。

　　你看，节约地球不是每个人都会对你difficult.if了一点改变，我们的地球母亲会微笑。