Global Warming is the unequivocal and continuing rise in the earth’s average temperature (IPCC, 2013). It is one of the most important issues that people around the world have been concerned about. According to NASA, the earth’s average temperature has almost doubled in the last 5 decades. There are many factors contributing to Global Warming and they can be classified into two groups namely natural events and human activities. This essay aims to demonstrate the two main causes, the effects and lastly the solutions to climate change.
EAP6- SP 18:00-19:30 Dated
16-06-2014
Climate change is now a vital issue all over the worldbecause this global problem effect on human life in the
future. That is why it is becoming an interesting topic among scientists.
Climate change is the long-term of weather conditions which relate to changing
in temperature, precipitation, winds, and other factors. (Causes of climate
change, 2013). Several causes of climate change were defined as natural causes and
human activities which are the two main root causes of climate change.
What is Greenhouse Effect?
First
of all, to comprehend about the main causes of climate change clearly, it is
helpful to understand one element that should explained when talking about
climate change “The greenhouse effect”. A greenhouse effect is the natural
process of the sun, the atmosphere and the earth that operate together in the
same approach as the greenhouse. Sun produces energy to the glass in term of
rays of light that the plants, soil, and other substances in the greenhouse are
wrapped up this energy from the sun. And the majority of this absorbed energy
is transformed to heat that make the greenhouse get warm by catching this heat.
What is more, the radiation of the sun warms the earth while the heat is not
able to fully escape the atmosphere, it is the reason the Earth keeps getting
hotter. According to report of Marc Lallanilla, water vapor and clouds, which
are greenhouse gases, produce about 80-90 % of the earth’s natural greenhouse
effect, but carbon dioxide, methane, and some of minor gases are also a part of
greenhouse gases. Obviously, greenhouse effect is divided into two factors.
(Lallanilla, 2013). There is natural greenhouse effect that keeps the earth’s
climate warm and habitable. Additionally, there is also man-made greenhouse effect,
which comes from extra greenhouse gases by cutting down trees, releasing
dangerous chemical substances from factories, vehicles and burning fossil fuels
such as gasoline, coal, oil and natural gases into the atmosphere, which seem
to be warming the earth more and more. For instance, approximately 30 percent
of the radiation striking earth's atmosphere is immediately reflected back out
to space by clouds, ice, snow, sand and other reflective surfaces. In contrast,
70 percent of incoming solar radiation from the sun is connected with the oceans,
land and atmosphere. As the radiation of the sun heat up, the heat of the
oceans, land and atmosphere spread to the Earth’s atmosphere. Additionally, a
similar greenhouse effect (phenomenon) happened in a car parked outside during
a sunny day. Inside the car is warmed by solar radiation. Thus, the outgoing
thermal radiation is blocked and trapped inside the car's closed windows. These
two pictures below explain how greenhouse effect works.
The
Greenhouse Effect
Natural Causes of Climate Change
Climate
change is a change in global or regional patterns. Human activities and nature
are the two main causes of climate change. There are two types of natural
factors: internal and external causes.
Internal Natural Causes:
Volcanic
eruption is one of the most dangerous natural disasters which can cost
thousands of lives in a blink of an eye. Directly, the eruptions of volcanoes
increase the temperature in that region. Indirectly, according to Exploring the
Environment, “An erupting volcano can eject vast amounts of ashes and gases
into the atmosphere” (Exploring the Environment, unknown). Most of the erupted
gases are water vapor and there is also a small amount of carbon dioxide which
only causes a small impact on global climate. However, the release of Sulfur
Dioxide (SO2) goes up to the stratosphere and floats around the planet and
combines with abundant water then turns into sulfuric acid (H2SO4) droplets
called aerosols. It impacts the climate because after a few years sulfuric acid
enters the lower atmosphere absorbs and traps heat especiallytrapping the heat
from the sun. For instance, thousands of years ago, the heat from sun splash to
the planet and almost one hundred percent is reflected back. Nevertheless,
nowadays because the amount of aerosols in the atmosphere is still increasing,
a lot of heat could not get out and the planet is getting warmer.
Another
internal natural cause is continental drift. Continents have been moving for
millions of years already and it is still happening. The movement changes
position of water bodies and physical features. For example, when cycles
related to long term changes in the earth’s orbit combine to produce colder
weather in this hemisphere, summer temperatures are not sufficient to melt the
snow from the previous winter. As more snow accumulates, it reflectsto sunlight
in huge amount, this causes further cooling and the rapid onset of an ice age.
One
other factor where the Earth itself can shift its own climate is when its axis
is tilting. This factor is normally called obliquity or Natural tilt. According
to MilutinMilankovitch, a 19th century astronomer, the Earth’s axis
is currently tilting at a fixed angle of 23.5o. This tilt creates
what is called seasons like autumn, spring, summer and winter. In fact, if it
was not for the tilting of the Earth’s axis, human and other living organisms
on Earth would have only encountered one season in their lifetime. There would
be the same season all year in every year. On the other hand,Milankovitch’s
studies also showed that around every 100,000 years, the axis tilts back and
forth between 22.1o and 24.5o. This event carries on for
40,000 years. When the tilt decreases, Earth will have colder summer and colder
winter. While if the tilt increases, it will be the other way around. This
phenomenon have been known to have caused ice ages in the past. In spite of the
fact that the natural tilt of the Earth’s axis currently does not occur, it is
also considered a factor that determines the shift in the Earth climate. (Przyborski).
External Natural
Causes:
Aside
from all the internal causes, there is one factor which occurs externally which
can shift the earth’s climate as well. Without a doubt, sunlight or sun
radiation is the major source responsible for sustaining all living organisms
on Earth. However, there is an event called the 11-year sunspot cycle. To
further understand about the 11-year sunspot cycle, it is helpful to understand
what sunspot actually means. Sunspot is basically a patch or hole which shoots
out the sun’s magnetic field or solar flares. In those 11 years, the sunspots
steadily rise to the point where it is called the solar maximum and decrease
back down again to what is called solar minimum. When the sunspots cycle
reaches solar maximum, the sun gets brighter due to the brightness of its
magnetic fields and solar flares coming out of the sunspots. Therefore, the
Earth gets warmer. The temperature will rise 0.2o Celsius. (Riebeek,
2010).
Bibliography
Anonymous (2013). Causes of climate change. Retrieved May 05, 2014 from http://www.climatechange.gc.ca/default.asp?lang=En&n=1A0305D5-1
Clean air kids. Greenhouse effect and global
warming. Retrieved May 02, 2014 fromhttp://www.clean-air-kids.org.uk/globalwarming.html
Marc
Lallanilla, (2013). What is the greenhouse effect? Retrived
May 01, 2014 from http://www.livescience.com/37743-greenhouse-effect.html
Milankovitch, M.
(n.d.). MilutinMilanko (1879-1958). . Retrieved May 20, 2014, from http://www.earthobservatory.nasa.gov/Features/Milankovitch/milankovitch_2.php
Exploring the
environment. (unknown). Volcanoes and Global Climate Change. Retrieved May 02,
2014 from http://ete.cet.edu/gcc/?/volcanoes_teacherpage/
Riebeek, H. (2010,
January 1). Is Current Warming Natural? Retrieved May 6, 2014, from http://earthobservatory.nasa.gov/Features/GlobalWarming/page4.php
Word count: 1160
Name: EAP6
Fourth Draft: Human
Causes of Climate Change
Burning
of fossil fuels contributes to a high carbon dioxide emission, which cause
global warming. There are three types of fossil fuels: coal, petroleum and
natural gases.
Coals
have been being used as the largest resource of fossil fuels for generating the
electricity, heat, and industrial purposes. Due to the high content of carbon
dioxide in coal, it emits a high percentage of carbon dioxide into the
atmosphere, more than other fossil fuel, when it comes into combustion
(Biologicaldiversity.org, 2014). By 2012, 41 per cent of global electricity was
generated by coal-fired power plants and it accounted for 39 percent of U.S
electricity, which was around 83 percent of greenhouse gas emissions in the
United States (Worldcoal.org, 2014).
Petroleum,
which emits about three-fourths of carbon dioxide from the combustion of coals,
is the second largest source of carbon dioxide production
(Biologicaldiversity.org, 2014). It plays a vital role as the energy sources
for global transportation because billion of cars, trucks and motorcycles burn
petroleum to operate, and it simultaneously releases atmospheric carbon
dioxide, which increases the Earth’s temperature. In 2009, 32.8 per cent of
global energy was generated by burning of petroleum and globally emitted 36.7
per cent of carbon dioxide (C2es.org, 2014).
Natural
gases contribute to the emission of greenhouse gas and they release only half
amount of carbon dioxide compared to the burning of the coal
(Biologicaldiversity.org, 2014). Because of the lower carbon content in natural
gases and the higher efficiency, which gas can be generated into electricity,
shifting from coal to gas in electricity conversion will reduce the greenhouse gases
emissions by 50 per cent (D.Lason, 2013).
Deforestation
is a well-known factor that contributes to greenhouse gases, which causes
climate change. The causes of deforestation are all from human activities.
There are three main reasons such as urbanization, subsistence farming and
commercial agriculture (Rita, 2011). Firstly, the modern lifestyle leads to
urbanization. As the daily needs always go up continuously, the standard of
living is always changing according to the development of society, so people
need to move to the place where they can find a job in order to make sure they
can have an adequate salary for living. As the result, the cities need land to
build more buildings, more accommodations and more amusement parks.
Consequently, forests need to be cut down for these facilities.
Secondly,
the farmers practice subsistence farming. Farmers have a traditional method of
changing land to plant crops, so forests are still cut down. Lastly, commercial
agriculture leads to the devastation of forests. When small agricultures turn
into a large agribusiness, investors need space to invest and also to farm on
it. That is why forests need to be cut down due to the needs. Turning to the
effects of deforestation, trees play an important role in absorbing carbon
dioxide from the atmosphere and releasing oxygen back in reverse. In spite of
being harmful to humans, carbon dioxide is really important for photosynthesis
as it is used to produce carbohydrates, fats, and proteins and so on to make up
the trees. If people keep removing trees from the earth’s crust, the polluted
air such as carbon dioxide, the toxin in the atmosphere will be spread
everywhere (What are Some Human Activities that Contribute to the Worsening
Effect of Global Warming?,n.d). Finally, the thickening amount of air pollution
increases the earth’s temperature as it reduces the net long wave of radiation
from the sun (Gavin, 2007).
Some
other gases, which are produced by human activities, play a vital role in
contributing to global warming.
Methane
is another major source that contributes to the climate change. It accounts for
20% of the greenhouse gases and its lifetime is about a dozen years in the
atmosphere. In spite of the methane’s concentration is lower than carbon
dioxide (CO2), it traps the heat 21 times greater than carbon dioxide (CO2),
(BBC, 2009). This gas comes from 2 main sources: natural processes and human
activities (EPA, 2014). In natural processes, bacteria break down organic
bodies, which convert it into methane and are spread out to the atmosphere
(BBC, 2009). Furthermore, wetlands also cause the emission of methane too.
However, two thirds of the methane emissions are caused by human activities. In
industrial sectors, the burning of fossil fuel emits lots of different kinds of
gases and one of them is methane. Thus, the presence of methane in the air is
unavoidable. In agriculture, most of the animals produce methane through their
digestive processes. Last but not least, waste in the landfill also generates
methane, which causes global warming (EPA, 2014).
Nitrous
oxide (NO) is part of the greenhouse gases, which causes global warming. With
the small amount of it presents in the atmosphere, its effect should cause no
any significant change in the temperature. However, with this tiny amount
(about 0.1% only), its side effect does make changes to the temperature. It is
about 200-300 times stronger than CO2 (BBC, 2009). The most common sources of
NO are for the use of Nitrogen base fertilizers, burning of fossil fuel and
wood, and from the breakdown of nitrogen in the soil (EPA, 2014).
Besides
methane and nitrogen, which are also considered to be the main greenhouse
gases, others gases such as Hydrofluorocarbons(HFCs), Perfluorocarbons(PFCs),
Sulphur-hexafluoride(SF6), Water Vapour(H20) and Ozone(O3), are seen as the
sub-factors of global warming that are powerful and last for a long time. These
gases are daily emitted by human activities into the atmosphere. HFCs are used
in the refrigeration in all aspects that may lead to 20 000 times more potent
than CO2 and last for 260 years. This gas is used to replace the CFCs which
both caused global warming and ozone layer depletion with their powerfulness
and a long lifetime in the past. PFCs and SF6 are applied in semiconductor
manufacturers, and they are 10000 and 20000 times correspondingly more powerful
than CO2 as they can stay up to 50000 and 3200 years respectively. In addition,
Water vapour (H2O), which is emitted daily by human in domestic or industrial
activities such as kitchens or food industries, are tiny. It may not be a
serious greenhouse gas; however, it may make the greenhouse effect worse while
being held by warm air. Lastly, Ozone layers, which defend the lives from the
Ultra Violate ray, can also trap the surface heat while it is inflected from
the earth surface (Greenpeace International, 2006).
 |
Bibliography:
1. Biologicaldiversity.org,.
(2014). Energy and Global Warming. Retrieved 12 May 2014, from http://www.biologicaldiversity.org/programs/climate_law_institute/energy_and_global_warming/
2.
C2es.org,. (2014). Center for Climate
and Energy Solutions. Retrieved 12 May 2014, from
http://www.c2es.org/energy/source/oil
3. D.Lason, E. (2013). Natural Gas and Climate
Change, 1-4
4. Gavin,
S. (2007, August 6). The CO2 problem in 6 easy steps. . Retrieved May 11, 2014,
from http://www.realclimate.org/index.php/archives/2007/08/the-co2-problem-in-6-easy-steps/
5.
Methane. (2009, July 1). BBC News.
Retrieved , from http://www.bbc.co.uk/climate/evidence/methane.shtml
6.
Methane Emissions. (2014, April
18). EPA. Retrieved , from http://epa.gov/climatechange/ghgemissions/gases/ch4.html
7.
Nitrous Oxide. (2009, July 1). BBC
News. Retrieved , from http://www.bbc.co.uk/climate/evidence/nitrous_oxide.shtml
8.
Nitrous Oxide Emissions. (2014, April
18). EPA. Retrieved , from http://epa.gov/climatechange/ghgemissions/gases/n2o.html
9. Other gases. (2006, March 16). Greenpeace
International. Retrieved May 9, 2014, from
http://www.greenpeace.org/international/en/campaigns/climate-change/science/other_gases/
10. Rita, P.
(2011, December 13). Causes and Effects of Deforestation. . Retrieved May 11,
2014, from http://www.buzzle.com/articles/causes-and-effects-of-deforestation.html
11. What are
some human activities that contribute to the worsening effect of global warming
?. (n.d.). . Retrieved May 11, 2014, from http://t.answers.com/answers/#!/entry/what-are-some-human-activities-that-contribute-to-the-worsening,536f43f5e56d0bb8535dd436
12.
Worldcoal.org,. (2014). coal
electricity, coal power plants - World Coal Association. Retrieved 12 May 2014,
from http://www.worldcoal.org/coal/uses-of-coal/coal-electricity/
Members:
Climate
Change: Effects
Final Draft
The increase
in the amount of Carbon dioxide does not only cause the rise in temperature but
also melted ice. The ice of both North and South poles has been melting which
cause the rise in ocean and sea levels (Davis, 2006). According to Davis, the
heat has been melting the ice in an extremely rapid rate. In fact, the water
temperature has also grown to become warmer (Davis, 2006). Consequently, some
parts of world’s continents have been flooded which influences heavily on human
and wildlife.Obviously, the warm temperature, resulted from inadequate ice,
might harm the lives of polar bears. When the oceans become warmer, the ice is
melted rapidly and the polar bears would have to face extinction (Davis, 2006).
Furthermore, melted ice and the rise of sea levels also have some impacts on
human’s lives. Based on the average rate, sea levels will have risen of 4.2mm
per year from 2000 to 2080, IPCC estimated.
It is a fact that there are approximately 240 million people around the world
who have migrated from their national borders and up to 20 million have been
displaced from their homes because of flooding (Werz, 2012).People have less clean water to drink and use for
their daily lives. Also, this issue makes the situations in their areas
dangerous and they have to leave the places to find other appropriate places to
live temporarily.
More than
this, high temperature is one of the main effects of climate imbalance. Time
after time, human keep producing greenhouse gases which trap more heat in the
earth’s atmosphere (Hamburg et al, 2006, 34-41). Studies illustrated that during
the last 30 years, the earth’s temperature has risen. According to Environment
Protection Agency, one record documented during a decade from 2000 to 2009
indicated that the temperature was the warmest of the period (Guide to Global
Climate Change, 2013). Scientists have noticed that higher temperature can
cause bad effects on human and nature. The heat waves can be dangerous for
people’s health. It causes illnesses such as heat cramps and heat stroke, or
even death. For example, in 2003 heat waves in Europe caused about 50,000
deaths, and in 1995 there were more than 600 deaths in Chicago (Guide to Global
Climate Change, 2013). Furthermore, while heat waves are likely to happen again
and again, it will also increase the temperature of air. In this case, it causes
wind velocity to become higher and increases water attitude in high latitudes.
The more heat presents in the atmosphere, the more water would evaporate. It is
an importantfactor which leads to heavy storms. For instance, some countries
thatdo not have any experiences with heavy storms are actually facing the
curious problemsof those environmental changes.
In addition,
the global warming would also give vastinfluences on both animals and plants.
According to researchers, global warming would be mainly about the increasing
of the earth’s temperature and Carbon dioxide rate in the earth’s atmosphere.
The huge rise of Carbon dioxide and Chlorofluorocarbons in the high atmosphere
will accumulate, and create the troposphere ozone which is a major contributor
to the greenhouse effect (Hamburg et al, 2006). It has also been stated that
some plants in the world would not be able to grow because the world is rapidly
getting warmer. The water will evaporate in the high temperature and the soil,
which is a keyfeature for crops to grow, will erode at the same time(Wight,
2014). Nowadays, some parts of the world have faced some serious problems which
are related to droughts. These are the reasons why some plants cannot adapt to
thetransformation of the water and the outside heat. The meteorologists have
indicated that the global warming impact was not only on certain types of
crops, but it also harms some animals because their lives depend on the natural
resources (Davis, 2006). As a consequence, this natural catastrophe would lead
to the extinction of animal in the world.
Lastly,
climate change can make a big impact on social lives. The rise of temperature
can cause many problems on public infrastructure and economy. For example, the
greenhouse gases have brought the earth to face the natural disasterlike floods,
storms, droughts, tsunamis or hurricanes, which can destroy people’s houses,
farms, infrastructures, and some fine buildings (Davis, 2006). Moreover,
according to a 2009 report made by the International Organization for Migration
produced in cooperation with the United Nations University and the Climate
Change, Environment and Migration Alliance, climate migrants will have
increased from 200 million to 1 billion by the year 2050. It has been stated
that, “environmental drivers of migration are often coupled with economic,
social and developmental factors that can accelerate to a certain extent mask
impact of climate change” (Werz, 2012).
It is also an essential economic issue when the way of living has changed in
order to adapt to the new environment, plus the cost of prevention and
improvement after the natural disaster is accordingly high to handle.
Wordcount:
836 words
Bibliography
1). An Inconvenient Truth. (2006),
Film, Davis Guggenheim. Paramount Classics: United States.
2). Author unknown, (2013). Guide to Global Climate Change [Online]. United States, Environmental Protection
Agency. Available From: http://www.epa.gov/climatestudents/impacts/signs/oceans.html [Accessed 02 May 2014].
3). Hamburg, S., (2006). ‘Common
Questions about Climate Change’ in Slaght, J. (Ed) English for academic
study: Reading and Writing Source Book. Issue in Society., Garnet
Publishing Ltd: UK.
4). Werz, M., et al, (2009). Climate
Change, Migration, and Conflict, Addressing Complex Crisis Scenarios in the
21st Century [Online]. United States, Center for America Progress. Available
From: http://www.americanprogress.org/issues/security/report/2012/01/03/10857/climate-change-migration-and-conflict/ [Accessed 06 May 2014]
5). Wight, E., (2014). ‘Droughts,
flooding, disease: the reality of a Cambodia that has been hit by climate
change.’ The Phnom Penh Post [Online], Available from: http://www.phnompenhpost.com/7days/droughts-flooding-disease-reality-cambodia-has-been-hit-climate-change [Accessed 08 May 2014].
Australian
Centre for Education
EAP6
(18:00-19:30)
Names:
Solutions
To Global Warming
Although
there are many causes and effects of global warming, there are some solutions.
To
begin with, recycling disposable old things is a main solution to improper
waste of used materials, which is one of the main causes of global warming. For
example, plastic wastes, which cost the most damage of all the wasted
materials, consist polyethylene that releases CO2 when it is heated
(Project Green bag, Internet) Since plastic bags are reusable, they should be
reused in order to cut down the large amount of waste that being produced
everyday.
Dealing
with the population growth is also a key solution to prevent climate change.
Because the population is increasing, the non-stop demands of humans also
become a crucial problem. There are 3 key solutions to this complicated issue.
One of the solutions is that governments of countries with large population on
the world should set a “One child policy” in their countries. This policy will
help the world’s population growth increase gradually, but not significantly.
For instance, China, which runs one child policy in their country, successfully
dropped its population growth from 0.73% to only 0.49% in 2012 (The Statistic
Portal, Internet). It is predicted that this decreased amount will help China
achieve its 2020 commitment to cut down pollution.
Moreover,
environment study should be included in the education system because only
education can change people’s behaviors. In addition, providing workshops that
focus on the problems of global warming can also help people learn and be aware
of these issues.
Almost
every human being knows about the greenhouse effects. However, there are only a
few people who bother to care about the earth and bring their knowledge into
action. There are plenty of actions to express our knowledge and bring them to
life. In order to spread the knowledge extensively to the world, we should write
down all of the important ideas and make books about what we know and publish
them. Furthermore, people should be encouraged to compose songs about climate
change problems and insert some messages to let people know that this world is
the only place to live and there is no second world (Inconvenient Truth, 2006).
People can speak up in their community and create short educating videos about
climate problems so the viewers will be able to understand the meaning more
easily (Inconvenient Truth, 2006).
Reducing
dangerous gases is one helpful solution to climate change. There are some gases
that have a lot of bad impacts on the earth such as Carbon Dioxide, Methane
(natural gas), Nitrous oxide, Chlorofluorocarbons, Tropospheric Ozone,
Stratospheric Ozone, et cetera (Reading & Writing source book, 2009).
Unsurprisingly, most of these above gases are caused by human activities. There
are several strategies to reduce these green house gases. One possible point is
that we humans should try to shorten working hours of each big industry, which
causes polluted air every day, since it is impossible to shut down those
factories that correspond to human needs. Another idea is to reduce our use of
electricitybecause electricity generation produces the large amount of CO2
(Reading and Writing, 2009).
The
horrendous effects of gasoline-used transportation towards global warming can
be averted by four supporting solutions. Since the past decades, useful
techniques have been given to prevent transportation’s impact on the environment.
Firstly, people should try to avoid utilize vehicles that require a lot of
fossil fuels and turn to use alternative fuels instead (Transportation and
Global Warming, N.D). Secondly, the idea of traveling with many people in one
vehicle such as using public transportation and sharing car seats with other
people can also help save our environment. Furthermore, keeping automobiles on
check and up-to-date can also help prevent climate change as well as save money
(Transportation and Its Impact on Global Warming, 2009). Finally, riding a bike
or walking does not only help prevent global warming, but also provides good
exercises and cuts down traffic congestion.
Almost
everything everyone uses every day requires the use of chemical substances that
cause climate change. However, if everyone could shift away from using the
chemical substances and turn to use renewable energies, that would be the
resolution to the global warming issues and the earth world be a better place.
There are many kinds of renewable sources such as wind, sun, hydropower,
biomass energy, hydrogen, geothermal energy and ocean energy. These energies
are very beneficial at making the earth healthier, providing heat and light,
producing electricity, providing fuels for transportation, powering energy, et
cetera (Top Seven Renewable Energy Sources).
Reforestation
helps improve the quality of the environment as well as of human life (Lovekar,
2013). As trees help reduce pollution and mitigate global warming, many East
Asian countries have successfully managed to reverse deforestation. For
instance, China has shown a tremendous change in converting land areas to
forest cover in the last decade. As a special initiative for reforestation,
China has also declared a “Natural Tree Planting Day” in the country. Moreover,
some of developed countries are very proactive, such as Germany, Canada and the
United States, which also have taken an initiative and are in the process of
increasing their forest areas through reforestation.
To
sum up, there are 7 suggested solutions to the climate change issue, namely
recycling the usable materials, limiting population, reducing dangerous gases,
putting knowledge into action, using public transportation and renewable
sources, and reforestation. People all over the world should take the
above-suggested solutions into consideration since the world is turning worse
from time to time.
Bibliography:
Author
unknown., (year unknown). The Statistics Portal [online]. Available from:
Accessed
on May 15, 2014
Author
unknown.,(2009). Project Greenbag [online]. Available from:
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on May 30, 2014
Guggenheim,
D. (Direcor). (2006). Inconvient Truth United States: Paramount Vantage.
Siegel,
K. (n.d.). TRANSPORTATION AND GLOBAL WARMING. . Retrieved , from http://www.biologicaldiversity.org/programs/climate_law_institute/transportation_and_global_warming/
Slangt, J., Harben, P., &
Pallant, A. (2009). WHAT HUMAN ACTIVITIES CONTRIBUTE TO CLIMATE CHANGE. Reading & Writing source book ().
UK: Garnet Publishing Ltd..
Transportation
and Its Impact on Global Warming. (2009, May 9). . Retrieved May 14, 2014, from
http://hernadi-key.blogspot.com/2009/05/transportation-and-its-impact-on-global.html
Vipul Lovekar (2013,July 3) Deforestation
Solutions. Retrieved
, from
West,
L. (n.d.). Top 7 Renewable Energy Sources. . Retrieved , from http://environment.about.com/od/renewableenergy/tp/renew_energy.htm
From the above explanation, it can
be concluded that the natural events and the human activities are responsible
for the rise of sea level, natural disasters and health problems which demand
effective solutions such as recycling reusable materials, reducing gases,
sharing transportation, using renewable sources and reforestation. So we humans
should take the global warming issue into consideration and bring all the
solutions above into actions.
