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Saturday 19 November 2011

GLOBAL WARMING - WHAT DOES IT MEAN?

WHAT IS GLOBAL WARMING?
It is the gradual increase of temperatures in the surface of the Earth.

WHEN DOES THIS HAPPEN?
When greenhouse gases(carbon dioxide, water vapor, nitrous oxide, and methane)trap heat and light from the sun in the earth’s atmosphere, which increases the temperature.

WHAT DOES THIS INCREASE OF TEMPERATURES PRODUCE?
This hurts many people, animals, and plants. Many of them cannot take the change, so they die.

WHAT CAUSES GLOBAL WARMING?
Many things cause global warming. One thing that causes global warming is electrical pollution. Electricity causes pollution in many ways. In most cases, fossil fuels are burned to create electricity. Fossil fuels are made of dead plants and animals. Some examples of fossil fuels are oil and petroleum. Many pollutants (chemicals that pollute the air, water, and land) are sent into the air when fossil fuels are burned. Some of these chemicals are called greenhouse gasses.
We use these sources of energy much more than the sources that give off less pollution. Petroleum, one of the sources of energy, is used a lot. It is used for transportation, making electricity, and making many other things. Although this source of energy gives off a lot of pollution.

CAN WE STOP GLOBAL WARMING?
It is too late for that, but we can slow it down and lessen its effects. The big problem is slowing human use of fossil energy, especially coal.

THE FOLLOWING VIDEO WAS CREATED BY TWO OF MY STUDENTS IN COMERCIAL 32. WATCH IT.



 IF YOU WANT TO ENLARGE THIS VIDEO PRESENTATION, CLICK ON THE YOUTUBE LOGO ON THE RIGHT 

AFTER HAVING WATCHED THE VIDEO, CAN YOU ANSWER THESE QUESTIONS?
1. What are the main consequences of global warming?
2. What are the man-made causes that produce this global warming?
3. In you opinion, can we do anything to slow down these consequences?

FINALLY, CLICK HERE AND CHECK HOW GREEN YOU ARE

ENVIRONMENT QUIZZES

1. HOW MUCH DO YOU KNOW ABOUT GLOBAL WARMING?

2. CLIMATE CHANGE QUIZ

3. GOING GREEN QUIZ

4. NATURAL DISASTERS QUIZ

Some information has been retrieved from http://library.thinkquest.org/CR0215471/global_warming.htm, and it has been adapted for this use

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