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SR INDEX NO
1 Snap Shot of Global Warming 2
2 What is the greenhouse effect? 3-4
3 What is global warming doing to the environment? 5
4 What causes global warming? 6-7
5 Global Warming is Inspiring Scientists to Fight for Awareness 8-9
6 What are people doing to stop global warming? 9
7 What is the government doing to stop global warming? 10
8 What are some of the other dangerous chemicals? 11
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Snapshot of global warming?
Global warming is when the earth heats up (the temperature rises). It happens when
greenhouse gases (carbon dioxide, water vapour, nitrous oxide, and methane) trap heat and
light from the sun in the earths atmosphere, which increases the temperature. This hurts
many people, animals, and plants. Many cannot take the change, so they die.
Global warming is an international issue?
The average facade temperature of the globe has augmented more than 1 degree Fahrenheitsince 1900 and the speed of warming has been almost three folds the century long average
since 1970. This increase in earths average temperature is called Global warming. More orless all specialists studying the climate record of the earth have the same opinion now that
human actions, mainly the discharge of green house gases from smokestacks, vehicles, and
burning forests, are perhaps the leading power driving the fashion.
The gases append to the planet's normal greenhouse effect, permitting sunlight in, butstopping some of the ensuing heat from radiating back to space. Based on the study on past
climate shifts, notes of current situations, and computer simulations, many climate scientists
say that lacking of big curbs in greenhouse gas discharges, the 21st century might seetemperatures rise of about 3 to 8 degrees, climate patterns piercingly shift, ice sheets contract
and seas rise several feet. With the probable exemption of one more world war, a hugeasteroid, or a fatal plague, global warming may be the only most danger to our planet earth.
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What is the greenhouse effect?
The greenhouse effect is when the temperature rises because the suns heat and light is
trapped in the earths atmosphere. This is like when heat is trapped in a car. On a very hot
day, the car gets hotter when it is out in the parking lot. This is because the heat and light
from the sun can get into the car, by going through the windows, but it cant get back out.This is what the greenhouse effect does to the earth. The heat and light can get through the
atmosphere, but it cant get out. As a result, the temperature rises.
The suns heat can get into the
car through the windows but is
then trapped. This makes what
ever the place might be, a
greenhouse, a car, a building,
or the earths atmosphere,
hotter. This diagram shows theheat coming into a car as
visible light (light you can see)
and infrared light (heat). Once
the light is inside the car, it is
trapped and the heat builds up,
just like it does in the earths
atmosphere.
Sometimes the temperature can
change in a way that helps us. The greenhouse effect makes the earth appropriate for peopleto 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
suns heat and light to make the night somewhat warm. During the day, especially during the
summer, it would be burning because the sun would be up with no atmosphere to filter it, so
people, plants, and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it, if there gets
to be too many gases, the earth can get unusually warmer, and many plants, animals, and
people will die. They would die because there would be less food (plants like corn, wheat,
and other vegetables and fruits). This would happen because the plants would not be able to
take the heat. This would cause us to have less food to eat, but it would also limit the food
that animals have. With less food, like grass, for the animals that we need to survive (like
cows) we would even have less food. Gradually, people, plants, and animals would all die of
hunger.
As said, the major cause of global warming is the emission ofgreen house gases like carbon dioxide, methane, nitrous oxide etc into the atmosphere.
The squiggle lines coming from the sun are visible light andthe lines and arrows inside the car are infrared light.
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The major source of carbon dioxide is the powerplants. These power plants emit large amounts of
carbon dioxide produced from burning of fossil fuelsfor the purpose of electricity generation. About twenty
percent of carbon dioxide emitted in the atmosphere
comes from burning of gasoline in the engines of the
vehicles. This is true for most of the developedcountries. Buildings, both commercial and residential
represent a larger source of global warming pollution
than cars and trucks.
Building of these structures requires a lot of fuel to be burnt which emits a large amount of
carbon dioxide in the atmosphere. Methane is more than 20 times as effectual as CO2 at
entrapping heat in the atmosphere. Methane is obtained from resources such as rice paddies,
bovine flatulence, bacteria in bogs and fossil fuel manufacture. When fields are flooded,
anaerobic situation build up and the organic matter in the soil decays, releasing methane to
the atmosphere. The main sources of nitrous oxide include nylon and nitric acid production,
cars with catalytic converters, the use of fertilizers in agriculture and the burning of organic
matter. Another cause of global warming is deforestation that is caused by cutting and
burning of forests for the purpose of residence and industrialization.
What are greenhouse gasses?
Greenhouse gasses are gasses are in the earths atmosphere that collect heat and light from
the sun. With too many greenhouse gasses in the air, the earths atmosphere will trap too
much heat and the earth will get too hot. As a result people, animals, and plants would die
because the heat would be too strong.
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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 theydie, 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.
The oceans are affected by global warming in other ways, as well. Many things that are
happening to the ocean are linked to global warming. One thing that is happening is warmwater, caused from global warming, is harming and killing algae in the ocean.
Algae are a producer that
you can see floating on
the top of the water. (A
producer is something
that makes food for other
animals through
photosynthesis, like
grass.) These floating green algae are food to many consumers in the ocean. (A consumer issomething that eats the producers.) One kind of a consumer is small fish. There are many
others like crabs, some whales, and many other animals. Fewer algae are a problem because
there is less food for us and many animals in the sea.
Global warming is doing many things to people as well as animals and plants. It is killing
algae, but it is also destroying many huge forests. The pollution that causes global warming
is linked to acid rain. Acid rain gradually destroys almost everything it touches. Global
warming is also causing many more fires that wipe out whole forests. This happens because
global warming can make the earth very hot. In forests, some plants and trees leaves can be
so dry that they catch on fire.
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When we throw our garbage away, the garbage goes to landfills.
Landfills are those big hills that you go by on an expressway that stink.
They are full of garbage. The garbage is then sometimes burned. This
sends an enormous amount of greenhouse gasses into the air and makes
global warming worse.
Anotherthing that makes global warming worse is when people cut down trees. Trees and
other plants collect carbon dioxide (CO2), which is a greenhouse gas.
Carbon dioxide is the airthat our body lets out when we breathe. With fewertrees, itis harder
for people to breathe because there is more CO2 in the air, and we dont breathe CO2, we
breathe oxygen. Plants collectthe CO2 that we breathe out, and they give back oxygen that
we breathe in. With less trees and other plants, such as algae, there is less air for us, and
more greenhouse gases are sentinto the air. This means thatitis very importantto protect our
trees to stop the greenhouse effect, and also so we can breathe and live.
This gas, CO2, collects light and heat (radiant energy), produced by the sun, and this makes
the earth warmer. The heat and light from the sun is produced in the center ofthe sun. (The
sun has layers justlike the earth.)
This layeris called the core. Justlike a core of an
apple, itis in the middle. Here there is a very high
temperature, about 27,000,000rF. This heat
escapes out ofthis layerto the nextlayer, theradiative zone. This layeris cooler, about
4,500,000rF. Gradually, the heat and light will
pass through the convection zone at a temperature
of around 2,000,000rF. When it gets to the
surface, the temperature is about 10,000rF.
Finally, the heat and lightis sentinto space. This
is called radiant energy (heat and light). The
radiant energy reaches the earths atmosphere. As
a result ofthis process we getlight and heat.
When you pollute, you send chemicals into the airthat destroy our atmosphere, so more heat and
light cannot escape from the earths atmosphere.
The dirty yellow color on outside is thesurface. The light and dark yellow
colored area is the convection zone. Theorange colored area is the radiative zone,
and the red colored area is the core. The
squiggle lines represent radiant
energy.
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Global Warming is Inspiring
Scientists to Fight for Awareness
Scientists all over the world are making
predictions about the ill effects of Globalwarming and connecting some of the events
that have taken place in the pat few decades asan alarm of global warming. The effect of
global warming is increasing the average
temperature of the earth. A rise in earths
temperatures can in turn root to other
alterations in the ecology, including an
increasing sea level and modifying the
quantity and pattern of rainfall. These
modifications may boost the occurrence and
concentration of severe climate events, such as floods, famines, heat waves, tornados, and
twisters. Other consequences may comprise of higher or lower agricultural outputs, glacier
melting, lesser summer stream flows, genus extinctions and rise in the ranges of diseasevectors. As an effect of global warming species like golden toad, harlequin frog of Costa Rica
has already become extinct. There are number of species that have a threat of disappearing
soon as an effect of global warming. As an effect of global warming various new diseaseshave emerged lately. These diseases are occurring frequently due to the increase in earths
average temperature since the bacteria can survive better in elevated temperatures and evenmultiplies faster when the conditions are favourable. The global warming is extending the
distribution of mosquitoes due to the increase in humidity levels and their frequent growth inwarmer atmosphere. Various diseases due to ebola, hanta and machupo virus are expected
due to warmer climates. The marine life is also very sensitive to the increase in temperatures.The effect of global warming will definitely be seen on some species in the water. A survey
was made in which the marine life reacted significantly to the changes in water temperatures.
It is expected that many species will die off or become extinct due to the increase in thetemperatures of the water, whereas various other species, which prefer warmer waters, will
increase tremendously. Perhaps the most disturbing changes are expected in the coral reefs
that are expected to die off as an effect of global warming. The global warming is expected to
cause irreversible changes in the ecosystem
and the behaviour of animals.
A group of scientists have recently reported
on the surprisingly speedy rise in the
discharge of carbon and methane release
from frozen tundra in Siberia, now starting
to melt because of human cause increases
in earths temperature. The scientists tell usthat the tundra is in danger of melting holdsan amount of extra global warming
pollution that is equivalent to the netamount that is previously in the earth's
atmosphere. Likewise, earlier one moreteam of scientists reported that the in a single year Greenland witnessed 32 glacial
earthquakes between 4.6 and 5.1 on the Richter scale. This is a disturbing sign and points that
a huge destabilization that may now be in progress deep within the second biggest accretion
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of ice on the planet. This ice would be enough to raise sea level 20 feet worldwide if it brokeup and slipped into the sea. Each day passing brings yet new proof that we are now in front of
a global emergency, a climate emergency that needs instant action to piercingly decreasecarbon dioxide emissions worldwide in order to turn down the earth's rising temperatures and
avoid any catastrophe.
It is not easy to attach any particular events to global warming, but studies prove the fact thathuman activities are increasing the earths temperature. Even though most predictions focus
on the epoch up to 2100, even if no further greenhouse gases were discharged after this date,
global warming and sea level would be likely to go on to rise for more than a millennium,
since carbon dioxide has a long average atmospheric life span
What are people doing to stop global warming?
People are doing many things to try to stop global warming. One thing people are doing iscarpooling. 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. 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. 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.
Watch what you buy. Many things, such as hairspray and deodorant, now are made to have
less of an impact on the atmosphere. Less greenhouse gasses will rise into the air, and global
warming will slow down.
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What is the government doing to stop global warming?
The government is doing many things to help stop global warming. The government made a
law called The Clean Air Act so there is less air pollution. Global warming is making people
get very bad illnesses that could make them disabled, very sick, and sometimes even die. The
Clean Air Act is making many companies change their products to decrease these problems.Part of the law says that you may not put a certain amount of pollutants in the air. Hairspray
and some other products, like foam cups,
had this problem. Making and using these
products let out too much volatile organic
compounds (VOCs), ozone-destroying
chemicals (chlorofluorocarbons (CFCs),
and related chemicals (such as CO2) into
the air. Now, almost all of these products
have a label on them telling people what
this product can do to the environment and
many people. By 2015 all products listed
on the Clean Air Act will have this label on
them:
WARNING: contains or manufactured with (the
chemical would go here. For example
chlorofluorocarbons (CFCs), a substance which
harms public health and the environment by
destroying ozone in the upper atmosphere.
Almost all of the other chemicals that could be harmful will have this label on them hopefully
by this time (2015) as well.
The Clean Air Act has also made car companies change some of the things inside of the cars.
Cars pollute a lot. While cars make more than half of the worlds smog (visible pollution in
the air), many things that cars need to move and heat up make even more pollution. Some
things that are inside of cars, buses, trucks, and motorcycles, like gasoline, pollute the air
when the fuel is burned. It comes out as a chemical and when mixed in the air, forms smog.
Smog is a kind of pollution that you see in the form of a cloud. If you have ever been to
California you can see a lot of smog in some places. Sometimes the smog gets so bad that
you cannot see at all! Smog forms when car exhaust, pollution from homes, and pollution
from factories mixes in the air and has a chemical reaction. The suns heat and light add to
the reaction.
Cars, buses, and trucks are also responsible for over 50% of dangerous chemicals let into the
air. Some of these chemicals can cause cancer, birth defects, trouble breathing, brain and
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nerve damage, lung injures, and burning eyes. Some of the pollutants are so harmful that
they can even cause death.
What are some of the other dangerous chemicals?
Some other chemicals that cause air pollution and are bad for the environment and peopleare:
Ozone- Ozone is produced when other pollution chemicals combine. It is the basic
element of smog. It causes many different kinds of health issues dealing with the
lungs. It can damage plants and limit sight. It can also cause a lot of property damage.
VOCs (volatile organic compounds, smog formers)- VOCs are let into the air when
fuel is burned. This chemical can cause cancer. It can also harm plants.
NOx (nitrogen dioxide)- This chemical forms smog. It is also formed by burning sources
of energy, like gas, coal, and oil, and by cars. This chemical causes problems in the
respiratory system (including the lungs). It causes acid rain, and it can damage trees.This chemical can eat away buildings and statues.
CO (carbon monoxide)- The source of this chemical is burning sources of energy. It
causes blood vessel problems and respiratory failures.
PM-10 (particulate matter)- The source of this chemical is plowing and burning down
fields. It can cause death and lung damage. It can make it hard for people to breathe.
The smoke, soot, ash, and dust formed by this chemical can make many cities dirty.
Sulfur Dioxide- This chemical is produced by making paper and metals. This chemical
can cause permanent lung damage. It can cause acid rain which kills trees and
damages building and statues.
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SYNOPSIS AND HOW ISGLOBALWARMING A CONTEMPARY ISSUE
There is a general worldwide consensus there is climate change occurring, but many still
claim it's not man made, but a natural earth cycle. While this may contain some truth, most
believe it is caused from the burning of fossil fuels and man in general. The bottom line is
that we have to figure out what we can do. Waters rising will be a disaster, food will be
affected and we going to plan for catastrophes like katrina. This is going to hit everyone,
not just the poor or the democrats or the Catholics--we're all in a heap of trouble and the
sooner we accept this
FACT -the better we can weather the situation . As far as politics go, it seems bush has
cost us by delaying so long before deciding it was real--obama and hillary seem to have a
better grasp of it's seriousness and i don't mean to take sides, that is the overall perception
shared by many...and finally, "global warming" is not as accurate a description as is
"climate change".
Global Warming is one of many examples of how scientific beliefs sometimes get spread
despite their lack of theoretical foundation. As with the belief propagated in the 1970's that
the ice age was about to envelop the earth, and the belief that pouring cerebral fluid from
one person's head into another would quickly move knowledge from one person to
another, the anthropogenic global warming theory became popular only to loose credibility
in the face of mounting evidence against it. As of this time, a number of nations are
working to destroy their economies on the basis of this now discredited theory. Care in
analyzing the reasons for holding beliefs, and not believing in things just because it is
fashionable is once again vindicated
In the end, whether you believe climate change is naturally occurring or hastened by man's
footprints, the truth remains that there are many ways to combat climate change, and theyall begin with you and me. We all must take responsibility for our actions (or inaction) and
learn to live sustainably, for our children, our future and our world.