There is a need for us protection of the environment.We can do a lot of things.Firstly,we can use more cloth bags instead of use plastic bags.Secondly,We should walk much,use lifts and cars less as well as possible.Thirdly,we should eat less fast food,because make fast food will produce a lot of CO2,that's very bad,isn't it?The fourth is that we should save water,try not to use the flash toilet,and don't bath for long.The fifth,we can use less air-conditioner.I think,if everybody take a part in environmental protection,the earth must be more beatiful.