Introduction and man-made causes. 2.2.a.Natural causes First and

Introduction

The environment has
been destroyed by human activities, and that leads to many severe problems,
especial global warming. As defined by the Oxford Learner’s Dictionary, global
warming is “the increase in temperature of Earth’s atmosphere, that is caused
by increase of particular gases, especially carbon dioxide.” According to Vital
Signs Of The Planet (NASA), since late 19th century, the average
temperature of our planet’s surface has risen 1 degree Celsius. Global warming
also affects both natural environment and human life. The National Oceanic and
Atmospheric Administration (15th March, 2016) announced that the
higher temperature is, the higher number of natural disasters as droughts,
intense storms and floods is. That resulted in from 1980 to 2015, USA lost over
$5.2 billion to remedy global warming effects. This research paper, which is
based on secondary data, discusses the culprits of global warming, its effects
and suggests several solutions to this problem.

2.   Discussion of findings

2.1.What are the facts of global warming?

A clear natural evident
for global warming is increasing temperature. Earth’s temperature has changed year
by  year. As reported by Luann Dahlman
(September 11th , 2017), since 1970, global surface temperature has risen
about 0.17? in each decade, more than twice as quick as the period 1880-2015.
The average world’s temperature was increased 0.94? in 2016. By 2030, scientists
predict that the heating imbalance caused by greenhouse gases begin to lose control
the ocean’s thermal inertia, followed by unchecked carbon dioxide emissions
likely resulting in soar earth’s temperature. Global warming takes place in all
countries in the world. For examples, in Alaska, Western Canada and Russia, the
temperature have increased at twice the global temperature; Arctic, in which
ice is melting quickly, is expected to have a completely ice free summer; or
the Montana Glacier National Park, there were 150 glaciers in 1990, but
nowadays, there are only 25 ones.

2.2.What
are the causes of global warming?

Global warming is one
of the most common problems that come up when we think about climate change or
environment contamination. The reasons causing global warming are divided into
two groups: natural causes and man-made causes.

2.2.a.Natural
causes

First and foremost,
volcanoes are one of the most tremendous natural factors that lead to global
warming. When volcanoes erupt, there is a large amount of ash and smoke such as
carbon monoxide, carbon dioxide, fluorine, ect are released in the atmosphere.
The substances create an air layer covering around our planet. This layer will
block the process of solar radition escaping from Earth’s surface, and absorb
and keep heat. That leads to increasing in Earth’s temperature. According to
the British Geological Survey and the US Geological Survey (n.d), about from
100 to 300 million tones carbon dioxide are released each year by volcanic
activity both in underwater and land.

The other natural
reason is water vapor. Water vapor is a type of greenhouse gas. It exists as a
thick blanket which consists of over 65% the gases in space. The water vapor is
unable to disappear, and thus causes climate change.

2.2.b.Man-made
causes

Human activities are
destroying the environment. That leads to many problems such as air pollution,
water pollution, soil erosion…, especially global warming. The primary
important human influence causing global warming is industrial revolution. The
higher the development of industry is, the higher demand for commodities is.
More and more factories are set up. To run machines, the factories need to burn
a great number of fossil fuels as coal and gas, and discharge variety amount of
gases into the environment in both water, soil, and air. These gases are carbon
dioxide, methane and nitrous oxide which are the substances leading to rising
temperature.

Additionally, an
indispensable culprit is overpopulation. The world’s population has increased
quickly and quickly. Followed by that is the rising in the number of transportation.
Billions of vehicles burn fuels and release mixture gases into atmosphere
everyday. That causes earth to be hotter, and going up its average temperature.
Besides, population explosion make global warming more severe because more
people means we breath out more carbon dioxide, and releases more garbage.  

Last but not least,
deforestation is also a reason causing global warming. Forests provide us many
precious profits as woods to produce papers, construct buildings; many economic
value products as elephant’s tusks, rhino’s horns and medical value products as
ginseng, linhzhi, and antler. To satisfy desire for a good and luxury life,
people have exploited forests intensely. That leads to loss a large number of
trees. Loss trees means loss thee air purifier, and rising greenhouse gas. 

BACK TO TOP