Causes and harms：

First and foremost, quite a few people Obtain Enormous Economic Benefits at the expense of our living environments. They put the economic interests in the first place while overlook the negative impact of environmental destruction. Secondly, industrial production has also caused severe damage and contamination to the environment.

Environment destruction/contamination is a problem that cant be neglected: The contaminated air may damage peoples health; the polluted water could poison creatures living in the water; soil contamination ,resulting from the over use of chemical fertilizers and pesticides, is anther major hazard to peoples health. (91 words)

On the one hand, the authorities should make and implement relevant laws and regulations to impose a heavy penalty on those who destroy and contaminate the environment deliberately. On the other hand, factories should act to reduce the emission of pollutants by using purification systems. Last but not least, we, as individual earth citizens, should take practical actions, such as using cloth bags, reducing the use of vehicles and so on. Only in this way can we live in a better world.