We learn about how greenhouse gases (carbon dioxide, methane, nitrous oxide, chlorofluorocarbons, water vapour, ozone) contribute to global warming in Form 4. (read Chapter 9 Form 4, page 10 & 11 of your notes).
To further understand this subject, an informative & educational DVD & VCD entitled An Inconvenient Truth by Al Gore is already available in the market for less than RM20 each. It was released in 2006.
The first video contains trailer to the film. If you would like to view the film, click on the second video from video@Yahoo! . Hope you find these useful. Happy viewing!
