文档介绍：key words
methane [ˈmi:θeɪn] <化>甲烷，沼气; 甲烷
greenhouse gases 温室气体
shifting ecosystems 改变生态系统
acidification [əˌsɪdɪfɪ'keɪʃən] 使发酸，酸化，成酸性; 变酸;
air conditioning 空调
ruminant [ˈru:mɪnənt];; 沉思默想的;
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question
Are you miss your childhood？
Do you remember when the last time you saw the clear water?
What do you want to save the only earth?
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Why is it so cold this winter？
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what do you think of the cold?
I think the most important is
the fact is
Global warming
全球变暖影响了正常的洋流流动，从而使西伯利亚高压强盛，以致今年冬天
寒冷较为异常。
Too little clothes.
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Global warming
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what is it?
Due to carbon dioxide, methane(甲烷) and other greenhouse gases （温室气体） in the atmosphere increase happens global temperature rise phenomenon.
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why should we care?
sea level rise
change in climate
shifting ecosystems (改变生态系统)
species die-off
ocean acidification(from CO2 increase)
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sea level rise
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change in climate
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shifting ecosystems
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