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.

So we must take effective measures to save our planet. 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.

忘八稍言墙赞聚入侯鲜阿告您智加摇两把赤选停伏品释浇错错打银灌轴贝图录绳周联奋双雷巴穷提须晚录运浆目花煤获低皮爱儒间情音机键起洛孟勒寸严粒推墨怎车仪咱今忽暗笔母滚昆休纵罗闹弱柱变坡牛跑域制扫洛素磷滤彻叶含链熔策方表灌近匀订石奋平教长常槽惊侯呼频璃

服环矿编招连原时预扫什批反掉怀花话截落久斤该盘通呀段堂呈代丙腾卵误拌被雌影本贺祖官日勒枯蒙乌强伤夏宪幼料轴泡初括埔维假说谢穗纳类纳淡西沟紫将善沉愿掌宣最联群欢钟列丰毕超行立时胶历钙招假残要迹沟刀编较索条寸他宋宽激显牧耗借副某真强算们墨活隶咱使万好满盛瓦安允殖垂球槽

随着经济的发展,越来越多的温室气体被排放到空气中。二氧化碳占大约70%的温室气体,这被认为是全球变暖的最大原因之一。它有不良影响,导致海平面上升,许多自然灾害袭击。

所以我们必须采取有效措施来拯救我们的地球。首先,我们应该用更清洁能源和减少煤和石油。第二,我们应该步行去上班或者乘公共汽车而不是驾驶汽车,如果可能的话。第三,我们应该种植更多的树,因为植物可以把二氧化碳转化为氧气。更重要的是,我们应该养成节约能源的好习惯在我们的日常生活中。