Global warming: Do you understand it?
- October 15, 2010 10:08 AM |
- By POV
By CBC News
Though the majority of Americans believe that global warming is actually occurring, many do not understand the reasons behind it, suggests new research released Thursday.
According to a study by Yale University researchers, 63 per cent of U.S. citizens believe that global warming exists. However, only 57 per cent know what the greenhouse effect is and only 45 per cent recognize the impact of carbon dioxide in trapping the earth's heat.
The greenhouse effect involves the trapping of the sun's heat by gases in the earth's atmosphere, such as carbon dioxide, nitrous oxide and methane.
And 50 per cent of Americans understand that global warming is the result of human activities.
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