3篇英语文章,希望帮忙改正类似语法,句子不通顺,使用不当之类的错误.

3篇英语文章,希望帮忙改正类似语法,句子不通顺,使用不当之类的错误.
Saving the world
Hello every one,my speech topic is “Saving the world”.
As you know,our world is changing all the time.The weather is worse,the temperature is rising,the plants are less,the ice sheets are melting,many bodies of water are polluting and so on.
Of course,people have discovered many problems and trying to save the world.People used to drive the car to work.Because the world is becoming warmer.People are trying to go to the work by bus,ride a bike or on foot now.
We can also do many things to save the world although we are only the students.As we can see,China has the biggest population in the world.But China has less than many countries’ plants.What can we do?We can grow the plants and we can economy the paper.
However,it is never too early to save the world.East,west,home is best.In fact,we can’t leave the world so we must keep the world from becoming worse.I hope our world can be clean and healthy once again.