18世纪以前,人类社会处于自给自足的农耕时代,人类对大自然资源的利用和破坏维持在一个很低的水平。然而,18世纪以来,随着生产的机器化、电气化,人类的物质生活水平迅速提高,伴随而来的是严重影响人们生存与发展的生态问题,例如森林面积的急剧减少、地球植被的破坏、生物多样性的锐减、土地荒漠化、酸雨、温室效应、沙尘暴加剧、雾霾天气的增多等一系列的生态环境问题。因此,树立环保意识是每一个地球人刻不容缓的责任, Before the eighteenth century, human society was in a period of self-sufficiency farming, and mankind maintained the use and destruction of natural resources at a very low level. However, since the eighteenth century, with the mechanization and electrification of production, the material living standards of human beings have rapidly risen, accompanied by the ecological problems that seriously affect the survival and development of people, such as the drastic reduction of forest area, the destruction of the earth’s vegetation, A series of ecological and environmental problems such as sharp decrease of biodiversity, desertification of land, acid rain, greenhouse effect, intensification of sandstorms and increase of haze and weather. Therefore, to establish a sense of environmental protection is a pressing responsibility of every earth,