可持续发展英语演讲ppt课件[文字可编辑].ppt

There is only one earth Contents 01 Historical review of the relationship between humans and the earth Take good 02 Face environmental care of the problems environment, Coordination to humanity and earth – Sustainable everyone duty 03 Development 04 What can we do 2 Historical review of the relationship between humans and the earth The environment problem has always existed, In different period, how humans and the environment with? How many development of relations between man and nature have been through? The prehistoric civilization The agricultural civilization The industrial civilization The Environmental civilization Worship of nature Transformation of nature To conquest the nature Seek the sustainable development of man and nature 3 The prehistoric civilization — Worship of nature In early human society, people with a variety of plants and animals for food. Gathering and hunting groups, causing damage to biological resources, but this environmental problem is not serious threat to humans. At this stage, due to low productivity and slow development, the role of the environment on human constraints stronger role of human transformation of the environment is weak, the relationship between people and the environment is a relationship between fear and dependency. 4 The agricultural civilization — Transformation of nature Into agricultural civilization, humans began large-scale transformation of nature, development and utilization of land, water, climate and other resources. Farming techniques have been developed,The food supply becomes stable, the population began to grow rapidly. At the same time, a large area of forests and grasslands have been cut down and burned, smelting and ceramics also cost a lot of wood. Agricultural extension also enables reduction of biodiversity, ecosystems become increasingly simple and fragile. Duri