1. Global Warming Project
By: Jannat M.

2. How are human actions contributing to
global warming?

3. What is global warming?
Global Warming is the increase of earth's average surface
temperature due to the effect of greenhouse gases. It only
happens when green house gases such as carbon dioxide, water
vapor, nitrous oxide, and methane traps the heat and the light
from the sun in the earth’s atmosphere, which increases the
temperature.  This effect many people, animals, and
plants. Some of them can’t take the changes of the climate and
they die.

5. What is Greenhouse effect ?
There are two meaning of this term “Greenhouse effect”
One of them is “natural" green house effect” and another
one is “man-made" greenhouse effect” Natural greenhouse
effect basically does is, it keeps the earth warm and livable
for us , and man-made does is, that it is effected by the
greenhouse gasses from the burning of the fossil fuels
which are petroleum, coal, and natural gas.

7. What are the green house gases ?
Carbon dioxide, Water vapor (H2O ), Methane (CH4 ), nitrous oxide (N2O ), and a few other
gases are greenhouse gases. About 80-90% of the Earth's natural greenhouse effect is due to
water vapor, a strong greenhouse gas. The other gases are due to carbon dioxide, methane, and
a few other minor gases. Carbon dioxide consists of one carbon atom with an oxygen atom
bonded to each side. When its atoms are bonded tightly together, the carbon dioxide molecule
can absorb infrared radiation (is thermal heat or energy) and the molecule starts to vibrate.
The vibrating molecule will release the radiation again, and it will probably be absorbed by
another greenhouse gas molecule. This absorption-emission-absorption cycle helps to keep the
heat near the surface, effectively insulating the surface from the cold of space. All the other
gasses are molecules composed of more than two large atoms, bound loosely together to able to
vibrate with the absorption of the heat. The major components of the atmosphere (N2  and O2 )
are two-atom molecules too tightly bound together to vibrate and they do not absorb heat and
contribute to the greenhouse effect.

8. What causes global warming?
There are many things that causes global warming. One of the most cause full global warming
is electrical pollution. Electricity causes pollution in many ways. Fossil fuels are burned to create
electricity.  Fossil fuels are made of dead plants and animals, fossil fuels also can be oil and
petroleum. Chemicals that pollute the air, water, and land are spread into the air when fossil
fuels are burned. Some of these chemicals are called greenhouse gasses.
Example of using energy and polluting the air are:
more than the sources that give off less pollution. Turning on a light
Watching T.V.
Listening to a stereo
Washing or drying clothes
Using a hair dryer
Riding in a car
Heating a meal in the microwave
Using an air conditioner
Playing a video game   

9. What is global warming doing to the environment ?
Global warming is affecting many parts of the world.  Global warming makes the
sea rise, and when the sea rises, the water covers many low land islands.  This is a
big problem for many of the plants,  animals, and people on islands.  The water
covers the plants and causes some of them to die.  When they die, the animals lose
a source of food, along with their habitat.  Although animals have a better ability
to adapt to what happens than plants do, they may die also.  When the plants and
animals die, people lose two sources of food, plant food and animal food.  They
may also lose their homes.  As a result, they would also have to leave the area or
die.  This would be called a break in the food chain, or a chain reaction, one thing
happening that leads to another and so on.

10. Global Warming Video