what do you think must be done to save the earth?

start at home, learn to segregate your garbage and dispose it properly. reuse and recycle items, as well as clean your environment. we should maintain and improve our natural resources. avoid using sprays that can damage the air. self-awareness and practice the idea of being clean... then you can save the environment.

To save the earth I think we need to increase our enviroment standard ex : make a lot of garden,decrease the ammount of car

I agree with you that earth is being eroded off.Natural resources are being drained off,ecological disturbance are some of the problems. To add to this list we have global warming, war, disease, natural calamities etc., I think that only one thing can be done to save the earth.That is "EDUCATION".Educating masses about the drawbacks of ecological disturbances, green house effect, war etc can stop this disturbance. Thanks