全球变暖——英语演讲PPT

The temperature rise 4℃
After four degrees Celsius rise in temperature , sealevel rise and flood (淹没) coastal cities; glaciers disappear, causing serious water shortages in many areas; And,London summer temperatures as high as 45 degrees Celsius.
temperature
，
half of the year in the Arctic(北极) will be ice-free state ，South Atlantic（大西洋的） coastal（沿海地区） areas, will suffer hurricane （飓风），residents （居民）
The temperature rise 6℃
After six degrees Celsius rise in temperature， hydrogen sulfide（硫化氢） and methane （甲烷） caused the fire from time to time; In addition to bacteria（细菌）, there is no any creature can survive “Armageddon（世界末日）,” is really start！
The temperature rise 3℃
After three degrees Celsius rise in temperature , Europe will continue to suffer in the hot weather, tens of millions or billions of refugees from sub-tropical（亚热带） to move to midlatitudes（中纬度）.
in the western United States will also face serious long-
term droughts（干旱）
the temperature rise 2℃
• After two degrees Celsius rise in temperature ，
gradually melting ice（融冰）, coral reefs （珊瑚礁） have gradually disappeared, and the global sea level rise seven meters.
Global warming
The effect of each tempeature
rise
Temperature rises to six degrees from once
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3
2
4
6
5
The temperature rise 1℃
After one degree Celsius(摄氏度['selsiəs])rise in
Green in where?
measures
Clean energy
Plant trees Work on foot or by bus
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The tempeature rise 5℃
After five degrees Celsius rise in temperature ， the areas not suitable for living are expanding ， the supply（供给） of water in some big cities of snow and aquifers dry up phenomenon, millions of people become climate refugees（气 候灾民）