1. temperature gets 0.8°C warmer than one hundred years

1. Introduction

     Global warming is moderate increase degrees of the earth’s troposphere generally
attributed to the greenhouse effect caused by enlarged level carbon dioxide
(CO2), chlorofluorocarbons(CFC),
and other pollutants exist. For example, as the development of industry
releases more garbage, it pollutes the environment. As the result, the earth’s
temperature gets 0.8°C warmer than one hundred years ago and temperature will continue to increases
in the future (Bradford
and Pappas, 2017).
Since then, people suffer more natural disasters like drought, flood, tsunami, earthquake. In
addition, Nature is also subject to much damage, Total 63,837 species which
revealed 19,817 species are threatened with extinction (Red list,
2012). Moreover, temperatures rise to make a difference to marine, and
expanding the desertification. This paper, based on secondary research, with
the aim of raising people awareness global warming, and will discuss the
causes, the effect, and the solutions to this problem.

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2. Discussion of
finding

2.1.
Some facts about global warming

At present, the Earth
is becoming increasingly hot. This phenomenon changes in the planet such as
environment, weather, animal, erosion and people’s life. For example, Ice in the
North Pole is melting, Until June 2016, ice square in there decreases 1.5
million square kilometers (from 12.7 km² to 11.1 km²). (For the first time in 100,000 years, the ice in
the Arctic could melt completely, 2016). That is the main cause of the decline of the polar bear. In 36 years, this species
has declined 13.4% per decade from 1979 through 2015. Future warming is
projected to be highest in the Arctic, well above that of the projected
global warming (Polar Bear: WWF Wildlife and Climate Change
Series, 2017). In addition, 2016 year has become the hottest
temperature year in the history. Many disasters occurred in 2016. Especially, a
lot of droughts
spread across much of southern Africa, triggering local food and water
shortages that affected millions of people. Wildfires in North America burned
about 8.9 million acres of western Canada and the United States, including that  a particularly destructive fire in
Alberta forced
mass evacuation and destroyed 2,400 homes. In addition, Coral bleaching in the
Great Barrier Reef can be died off by warm waters in the Pacific. (Plumber and Popovich, 2017). Therefore, Global
warming affected not only people’s life but also the Earth’s environment. Since
then, humans must work together to minimize damage caused by global warming.

2.2.
Causes of global warming

First of all, main cause of global
warming is due to an increase in greenhouse gases (carbon dioxide,
chlorofluorocarbons, and other pollutants exist), those gases cannot get out of
the atmosphere where they are concentrated on them, causing the sun to shine on
the Earth, the heat trapped causing the temperature of the Earth to rise. In
addition, those gases derived from a variety of reasons such as natural and
human.

Activities of natural are one of the factors
contributing to global warming. In fact, kind of natural phenomenon releases a huge amount of
greenhouse gases into the atmosphere. For example, disasters such as forest
blazes, volcanoes emit carbon-filled smoke,
the plume of ash and
smoke goes out into the atmosphere. In addition, water vapor is present in the
atmosphere and has a strong effect on weather and climate, since water vapor is
a type of greenhouse gas, so more water vapor in the atmosphere leads to more
global warming. Moreover, the grayish-black grime that coats urban buildings
traps and holds nitrous oxide, it also releases it concentrated amounts when
the sun warms the grime (Sonia Madaan, 2016). It can be seen that
global warming is a natural phenomenon of the Earth.

On the
other hand, if natural causes to create global
warming, human activities have accelerated the process of global warming. Especially,
Activities such as burning fossil fuel, farming, deforestation generates large
amounts of greenhouse gases. For example, Australia has the level
of CO2 pollution per person is nearly double the average of other developed
nations and more than four times the world average by 73% of their electricity
comes from coal burning and 13% from burning gas. Besides, this country’s
agriculture with livestock are grazed at a large scale contributes 16% of our
total greenhouse gas emissions. In addition, Plants play an important role in
regulating the climate, but up to one-fifth of global greenhouse gas emissions
comes from deforestation and forest degradation. (Causes of global warming, 2017). According to
research results, “In the period 1994-2010, total greenhouse gas emissions in
Vietnam (including LULUCF) increased rapidly from 103.8 million tons of CO2,
equivalent to 246.8 million tons of CO2. Equivalent, in which the energy sector
grew the fastest from 25.6 million tons of CO2 equivalent to 141.1 million tons
of CO2 equivalent and also the largest emitter in 2010.” (UNDP – Human Development Report, and Vietnam’s first announcement of
the United Nations Framework Convention on Climate Change, 2007/2008).
Consequently, global warming is mainly caused by
human impacts on the environment and nature.

2.3. Effects of global warming

At the moment, global warming is becoming more and more
complex and unpredictable. The Earth’s temperature rising lead to many natural
phenomena unusual. A lot of disasters occur more frequently with stronger intensity
than before. For example, in 2017, Vietnam suffered 16 typhoons and 6 tropical depressions,
more than in 2013 (with   13 typhoons and
6 tropical depression) (Tran
Quang Hoai, 2016). Since then, humans see clearly is the change of
environment, weather and influence of global warming.

Global warming affects not only human’s life but also
erosion, animal’s life. Especially, ice is melting worldwide, and the Earth’s
poles, where phenomena are the strongest. Moreover, ice sheets covering West
Antarctica and Greenland, and Arctic sea ice are melting. As the result, the
sea level has been rising more quickly than the last century and habitat of
species of animal decline sharply. Therefore, animals such as penguins on
Antarctica where their numbers have fallen from 32,000 breeding pairs to 11,000
in 30 years, and some butterflies, foxes, and alpine plants have moved to
farther north or to higher, cooler areas. From the mid-1980s, with less ice on which to live and
fish for food, polar bears have gotten considerably skinnier (Effects of Global Warming, 2017). Besides, if these effects continue to occur, perhaps a lot of animals
and ecosystems on Earth will disappear forever.

Moreover, those disappearances cause
an imbalance in the ecosystem, and it also directly affects humans. Global warming
is the cause of natural disasters all the world. Especially, double disasters
tsunami and earthquake in Japan in 2011 had 16,000 people have been killed,
more than 2,000 missing and at least 3,200 dead in evacuation. Until now,
nearly 230,000 people are still living in temporary and only 19 percent of the
30,000 public houses have been built (Thoa Pham, 2015). In addition, having a variety of strong
hurricanes was created by abnormal weather condition, they cause severe damage
to the human
being. For instance, in 2013, Super Typhoon Haiyan landed in the
Philippines.
Consequently, more than 16 million people were affected, 6,000 death toll, 4.1
million displaced and 2.5 million missing. Moreover, not only typhoon Haiyan
brings about the damage to people that this stormy destroyed 1.2 million homes
and half that was completely destroyed. The number of homes lost in the
affected area is up
to 90 percent (Alyssa
Cogan, 2013). Since then, it is not surprising that effects of global
warming have become increasingly apparent, and these effects are best
manifested in natural disasters and unusual weather conditions. If human does not have a solution
to this problem, they will destroy not only species of animals and ecosystem of
Earth but also human’s life and civilization.

3.
Conclusion

Over a relatively period of time,
global warming is having a clearer impact and it has become one of the most
concerned phenomena in recent years. Because both natural and human is
the factor that promotes the rapid increase
of temperature in the Earth. Natural phenomenon as forest blazes, volcanoes,
…as well as the consequences of industrial development and the living of human
life released a large of greenhouse gases. As the result, people and the Earth
must suffer many transform of environment, climate, and it leads to many
species of animals and plants extinct due to
the disappearance of ecosystem,
and humans suffer life and property damage. Therefore, people must take
measures to minimize the effects of global warming, and a small act of each
person also can change the future of all the world.