I have found that the pollution in our city is more and more serious.I'm extremely worried about it.In order to keep a good environment,we must do something to reduce the pollution .Here I want to give you some suggestions.Nowadays,many people often throw rubbish everywhere.So I advise government to put more dustbins in the street.It is convenient for us to sort the rubbish .We can burn and bury some harmful rubbish,which will pollute the environment.In addition ,more and more factories pour the dirty water into the river,which makes the river smelly and dirty.If we drink the water directly,it will be harmful to our body.So I think we should do our best to deal with the waste water .Besides,we can treat and reuse newspaper .It can reduce trees from cutting.How about planting more and more trees?In my opinion,trees must be grown all over the world.And it can make the city better.In a word,it is very important for us know the great importance of the environment .We should have a positive attitude to protect it.If we don't pay attention to the environment,it will do harm to our health .We hope that our city will become one of the most beautiful cities in our country.These are only my personal suggestions.I hope you will find it useful .That's all!Best wishes to you.