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楼主  发表于: 2012-11-25 19:53

 Global warming

Scientists all over the world agree that humans are the cause of global warming and that it could have catastrophic effects. It is important for all countries to reduce emissions of carbon dioxide and other greenhouse gases to limit the future effects of global warming.

As a society, we must break our dependency on fuels that cause pollution by supporting clean, renewable energy sources. Each of us can slow global warming by reducing our carbon footprint and the pollution we produce as individuals every day.
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