问题描述：
关于全球变暖的英语作文,词数100左右
内容包括：节能减排,低碳生活,人人可为；改变以往家庭生活中浪费的习惯（如用电,用水等）；出行使用公共交通工具或骑自行车.发表一些自己的见解,号召同学们过低碳生活,为减少二氧化碳排放做贡献.字数在100左右就可以了
问题解答：
我来补答
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.
