《The_Greenhouse_Effect温室效应英文.ppt》由会员分享，可在线阅读，更多相关《The_Greenhouse_Effect温室效应英文.ppt（17页珍藏版）》请在三一文库上搜索。
1、Team members：汪宇 刘凯 孙航 舒云安,The Greenhouse Effect,What is greenhouse?,Definition The so-called greenhouse effect is short-wave solar radiation through the atmosphere into the ground, and warming the ground after the length of radiation being released in the atmosphere by absorbing carbon dioxide and o
2、ther substances, thereby creating the effect of atmospheric warming.,Greenhouse gas:,Carbon dioxide is not the only greenhouse gas. Other gases, such as methane (CH4) and nitrous (氮的、硝的）oxide (NO), are even stronger infrared （红外线的）absorbers.,The natural greenhouse effect is crucial（决定性的） for maintai
3、ning the proper temperature needed to sustain (支持、支撑）life on Earth.,BUT : THE GLOBAL WARMING!,Global warming,Temperature A worldwide greenhouse effect might produce a dangerously warmer world. Since the late 19th century, the average global temperature has increased between 0.3 C and 0.6 C. Internat
4、ionally, 2010 was the hottest year on record since official weather records first started being kept by the British in about 1860.,Estimates（估计） of global average temperatures have projected an increase of as much as 5C before the year 2100. Such a rise in global temperature would produce new patter
5、ns and extreme drought and rainfall, which would seriously disrupt food production. This could potentially cripple the North American corn belt , which produces much of the worlds grain, leading to much higher food prices, and even less food for the Third World than they already have.,The other seri
6、ous worry is that rising sea levels from the melting of the polar ice could severely flood many countries. A rise in sea levels of one metre, which many experts are predicting by the year 2100 (and some as soon as 2030), would flood 15 percent of Egypt（埃及）, and 12 percent of Bangladesh(孟加拉国). The Ma
7、ldives (马尔代夫）in the Indian Ocean would almost completely disappear.,返回,What are the factors?,The mankind burning coal, oil, natural gas and tree and produce a great deal of carbon dioxide and methane so many years, those gases get into the atmosphere make carbon circulate a disequilibrium and have c
8、hanged the energy of the Earth biosphere conversion form. And finally become global warming.,What had we done,What has been done to settle it?,Kyoto Protocol 京都议定书（英文：Kyoto Protocol，又译京都协议书、京都条约；全称联合国气候变化框架公约的京都议定书）是联合国气候变化框架公约（United Nations Framework Convention on Climate Change，UNFCCC）的补充条款。是1997
9、年12月在日本京都由联合国气候变化框架公约参加国三次会议制定的。其目标是“将大气中的温室气体含量稳定在一个适当的水平，进而防止剧烈的气候改变对人类造成伤害”。,AOSIS (小岛国联盟): Most of the countries which would suffer mostly from a rise in sea levels are the poor island states, so the islands in the Caribbean（加勒比海的） , South Pacific（太平洋的）, Mediterranean（地中海的） and Indian Ocean have
10、 formed the Alliance（联盟）of Small Island States, AOSIS, so they have a louder voice in internatioanl politics and can make the richer developed world listen to their problems.,返回,What should we do :,*Take the public transportation *Dont set off the firecrackers（爆竹） *Use solar energy *Afforestation（造林）,*Try to be a volunteers *Support environmental protection commonwealth *Simple life! *,As long as we try to change, we will succeed!Thank you ！,