敬畏自然 Reverence for Nature and stop acting 英语演讲课件

Reverence for Nature and stop acting Man is the son of nature, no matter how great civilization created by human beings, is always the son of the mother of nature, the son for the mother, is should always harbor a heart of awe, however, we really do it? 01. 02. 03. 04. Greenhouse effect Conserve wildlife Water pollution Desertification N E O Greenhouse effect 温室效应 The appearance of bloody ice sheets and red waterfalls in the inaccessible Antarctic glacier is undoubtedly a silent warning of global warming. At the same time, the abnormal events caused by Antarctic warming include the beginning of Antarctic green, and the beginning of melting of siweitz glacier, which is called "doomsday glacier". Worse is in the Arctic. Compared with 20 years ago, the area of Arctic glaciers has decreased by 40%, while the area of permafrost has disappeared by half in the past 30 years. On the one hand, the melting of glaciers will release a lot of methane gas, which is a stronger greenhouse gas than carbon dioxide, so the release of methane will increase the temperature of the earth. On the other hand, permafrost may re expose and decay the animal and plant corpses that have been banned under permafrost, such as the mammoth, an ancient creature, which will lead to the resurrection of some infectious viruses and bacteria, leading to an unknown outbreak of plague Since the Industrial Revolution, the amount of heat-absorbing greenhouse gases such as carbon dioxide emitted into the atmosphere by human beings has increased year by year, and the greenhouse effect of the atmosphere has also increased. The problem of global warming has become more and more serious W O T conserve wildlife 保护野生动物 It is a world full of life, these lives are connected with each other, making the world colorful. Although human beings are at the top of the biological chain, every step of human evolution cannot be separated from the animals around us. However, human beings kill wild animals wan