How to Protect Our Environment There is no doubting the great benefits which scientific advances have brought us . Yet we have become increasingly aware that some technologies’ developing brings unexpected and harmful side effects . A number of factories spring up like mushrooms ,exhausting much waste gas , which leads to the greenhouse effect and air pollutions . Plentiful trees are cut down that causes the lands to change into the deserts . At the same time , varieties of species are gradually extincting . These phenomenons give us clear warnings of the dangers of failing to live harmony with nature . We ought to set up a profound mind to protect our environment . For the governments ,they should make detail laws and policies to observe the behaviors of destroying the environment . Factories should exhaust polluted water or gas after dealing with rather than merely pursue the economic interests . Planting as more as possible trees , in case of the water and soil erosion . For farmers , they must reduce spraying the insecticides . We also must make less use of plastic materials and one-off products . In addition , we wouldn’t throw the rubbish anywhere . Thus , we at least can maintain our environment in a good state . However , that’s not enough . We are supposed to work harder to protect our environment . 本文来源：https://www.wddqw.com/doc/1950a762551810a6f52486e2.html