URL: http://www.takepart.com/blog/wp-content/uploads/2008/02/global-warming.jpg

1. What is global warming?
-Global warming is when the earth heats up, temperature rises. Its happen when greenhouse gases trap heats and light from the sun in the earth’s atmosphere, which increases the temperature. This may cause animal, people, plants to die, if they cannot take the changes.

2. What are the causes? (Names 3)
-Cause by electrical pollution. Fossil fuels are burned to create electricity. Fossil fuels are made by dead plants and animal. Example: oil and petroleum.
-Cause more greenhouse gases to be sent into the air because creating the electricity you use to do these things causes pollution.
-Another thing that makes global warming worse is when people cut down trees. Trees and other plants collect carbon dioxide (CO2), which is a greenhouse gas.

URL: http://library.thinkquest.org/CR0215471/global_warming.htm
(For causes and what is global warming.)

3. What are the effects? (Names 3)
-Climate changes are both concern both for the environment and human life.
-The instrumental temperature record, rising sea levels, and decreased snow cover in the Northern Hemisphere
-Oxygen depletion- The amount of oxygen dissolved in the oceans may decline, with adverse consequences for ocean life.
URL: http://en.wikipedia.org/wiki/Effects_of_global_warming

by Kar Yee