Many people think the root of the environment promblems is pulution.But I do not think so.In my opinion,the endless needs of natural resourse from human is the main piont.Our sociaty need to develop.We had to open more factories.We had to produce more green hourse gases.We had to use car and trucks.But we human forgot to protect the environment.And what we have got is far more beyond what the environment coulf offer.So I think we need to joined together to finger out the problems of the environment .