关于全球变暖英文ppt下载

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Global Warming 1.What is global warming Global warming is the gradual rise in the Earth's temperature caused by high levels of carbon dioxide and other gases in the atmosphere. 2.What caused global warming Natural causes Greenhouse effect Human reasons Human activities-emission Greenhouse effect 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 other substances， thereby creating the effect of atmospheric warming. Greenhouse effect Human activities-emission 3.What’re the effects of global warming Effects on Humans Effects on Wildlife Effects on Humans Global warming is a danger to a human's health. Its affect on climate can adversely affect humans. Plagues have been attributed to global warming. An increase in temperature can result in a longer life cycle for diseases. Global warming can affect our future ability to obtain food. As climates change， plants and animals will change， leading to a change in the eating patterns of humans. Effects on Wildlife Polar Bears Require pack ice to live Might eventually go extinct in the wild Sea turtles Breed on the same islands astheir birth Could go extinct on some islandsas beaches are flooded Other species may go extinct as rainfall patterns change throughout the world So we must take effective measures to solve this problem What should we do? 4.What should do 1.Individual efforts 2.National efforts First， we should use more clean energy and less coal and oil. Second， we should go to work on foot or by bus instead of driving a car if possible. Third， we should plant more trees， because plants can turn CO2 into oxygen. More importantly， we should form the habit of saving energy in our daily life. What should governments do? First， governments can support research. For example， they should encourage companies to develop vehicles that cause less pollution. They should also support alternative sources of electricity from wind and water rather than from oil and coal. Secondly， they should make laws that limit the amount of greenhouse gases that companies can emit. Private companies should be rewarded for following these laws. They should also be punished for creating pollution. The earth is our home，we have the responsibility to protect it .We must take measures to prevent global warming as eraly as possible.WCD红软基地

全球变暖ppt模板：这是全球变暖ppt模板，包括了全球气候变暖，全球气候在不断的变化之中，气候变暖现象加剧，全球多处雨雪增加，造成气候变暖的因素，全球变暖的影响，二氧化碳的影响及作用等内容，欢迎点击下载。

关于全球变暖的ppt英语：这是关于全球变暖的ppt英语，包括了事实究竟是什么？原因究竟是什么？人口剧增因素，大气环境污染因素，后果究竟会怎样？应当采取何措施等内容，欢迎点击下载。

全球气候变暖ppt：这是全球气候变暖ppt，包括了全球变暖是真的吗？（诊断），为什么会这样？（病因），有何危害？（并发症和后遗症），如何应对？（治疗方法）等内容，欢迎点击下载。