1. By : Retno Palupi

2. Subtitles :
- What is Global Warming
- What is Green House effect
- What causes global warming
- History of Global Warming
- Effect of Global Warming
- What are people doing to stop
Global Warming
- Solution of Global Warming

3. Global warming is when the earth heats up
(the temperature rises). It happens 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. This hurts many
people, animals, and plants. Many cannot
take the change, so they die.
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4. The “greenhouse
effect” is the warming that
happens when certain
gases in Earth’s
atmosphere trap heat.
These gases let in light but
keep heat from
escaping, like the glass
walls of a greenhouse.
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5. Sometimes the temperature can change in
a way that helps us. The greenhouse effect
makes the earth appropriate for people to live
on. Without it, the earth would be freezing, or
on the other hand it would be burning hot. It
would be freezing at night because the sun
would be down. We would not get the sun’s
heat and light to make the
night somewhat warm
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6. Many things cause global warming. One thing
that causes global warming is electrical
pollution. Electricity causes pollution in many
ways, some worse than others. 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.
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7. Some other examples of using energy and
polluting the air are:
- Turning on a light
- Watching T.V.
- Listening to a stereo
- Riding in a vehicle
- Playing a video game

8. Svante Arrhenius
(1859-1927) was a He found
Swedish scientist that was that the
the first to claim in 1896 average
that fossil fuel combustion surface temperature of
may eventually result in the earth is about 15oC
enhanced global warming. because of the infrared
He proposed a relation
between atmospheric
absorption capacity of
carbon dioxide water vapor and carbon
concentrations and dioxide.
temperature.
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9. This is called the natural greenhouse effect.
Arrhenius suggested a doubling of the CO2
concentration would lead to a 5oC temperature rise.
He and Thomas Chamberlin calculated that
human activities could warm the earth by adding
carbon dioxide to the atmosphere. This research was
a by-product of research of whether carbon dioxide
would explain the causes of the great Ice Ages. This
was not actually verified until 1987.
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10. The planet is warming, from North Pole to South
Pole, and everywhere in between. Globally, the
mercury is already up more than 1 degree Fahrenheit
(0.8 degree Celsius), and even more in sensitive polar
regions. And the effects of rising temperatures aren’t
waiting for some far-flung future.
They’re happening right now. Signs are appearing
all over, and some of them are surprising. The heat is
not only melting glaciers and sea ice, it’s also shifting
precipitation patterns and setting animals on the
move.
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11. 1. Ice is melting worldwide, especially at the
Earth’s poles. This includes mountain glaciers, ice
sheets covering West Antarctica and Greenland, and
Arctic sea ice.
2. Sea level rise became faster over the last century.
3. Precipitation (rain and snowfall) has increased
across the globe, on average.
4. Hurricanes and other storms are likely to become
stronger.
5. Sea levels are expected to rise between 7 and 23
inches (18 and 59 centimeters) by the end of the
century, and continued melting at the poles could add
between 4 and 8 inches (10 to 20 centimeters).

12. People are doing many things to try to stop
global warming. One thing people are doing is
carpooling. Carpooling is driving with someone to
a place that you are both going to.
This minimizes the amount of greenhouse gases
put into the air by a car. Another thing that people
are doing is being more careful about leaving things
turned on like the television, computer, and the
lights.
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13. A lot of people are taking time away from
the television, and instead, they are spending
more time outdoors. This helps our planet out
a lot. Now, more people are even riding
busses, walking to school, and riding their
bikes to lower the amount of greenhouse gases
in the air.
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14. Planting trees and recycling also helps. If you
recycle, less trash goes to the dump, and less
trash gets burned. As a result, there are fewer
greenhouse gasses in our atmosphere.
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15. 1. We plan to offer honest value comparisons of
products such as hybrid cars.
2. Choice of building materials is just one part of
what is known as green building.
Green building can best be described as the birth to
grave process of building.

16. conclution :
Remember to save our earth. All
we need to do are plant new trees as
much as we can and do
recycling, reducing and reusing.

17. Let’s keep our earth
from damage