This document provides an introduction to global warming, including: - A definition of global warming as the average rise in Earth's temperature caused by the greenhouse effect, which keeps heat from escaping the atmosphere. - A description of the characteristics of three major greenhouse gases. - Evidence of an abnormal temperature rise since 1980. - Links to websites about minimizing carbon footprints and becoming part of the solution to global warming.

1. Introduction of Global
Warming
Annie & Evelyn

2. Outline
• Movie clip
• What is global warming?
• Characteristics of three major greenhouse
gases
• Abnormal temperature sine 1980

4. What is Global Warming?

5. What is Global Warming?

6. What is Global Warming?
• Global warming refers to an average
increase in the Earth's temperature, which
in turn causes changes in climate. This
temperature rise is caused by the
Greenhouse effect -- a necessary
phenomenon that keeps all Earth's heat
from escaping to the outer atmosphere.

7. What is Global Warming?
• Global warming refers to an average
increase in the Earth's temperature, which
in turn causes changes in climate. This
temperature rise is caused by the
Greenhouse effect -- a necessary
phenomenon that keeps all Earth's heat
from escaping to the outer atmosphere.
• Without the natural greenhouse effect it is
certain that life on Earth would be difficult
to sustain. However, too many greenhouse
gases in Earth's atmosphere would lead to
changes in rainfall patterns, a rise in sea
level, and a wide range of negative impacts
on plants, wildlife, and humans.

8. Characteristics of three major
greenhouse gases

9. Characteristics of three major
greenhouse gases

11. Abnormal Temperature Rise since 1980
http://www.seed.slb.com/en/scictr/watch/climate_change/change.htm

12. Start saving our earth from today!
http://www.carbonfootprint.com/minimisecfp.html
http://actonco2.direct.gov.uk/index.html

14. “ Each of us is a cause of global warming, but each of us
can become part of the solution,” said Al Gore, 2007
Nobel Peace Prize winner.