The document is a student assignment on global warming. It discusses the causes and effects of global warming, including how human activity like burning fossil fuels is overloading the atmosphere with carbon dioxide and trapping heat. It reviews literature from experts acknowledging the threat of climate change. The assignment analyzes ways to control global warming like reducing energy and fossil fuel use and planting trees. It concludes that while individual efforts may seem small, collective action is needed and successes should be celebrated.

1. 11
Page 1 of 12
The University Of Lahore
Course Technical Writing and Presentational
Skills
Submitted To Ms. Musharraf Aziz
Department Mechanical Engineering
Semester 5th
ASSIGNMENT No. 01
Assignment Title Global Warming
Submission Date 15-01-2014
Due Date 15-01-2014
Student Name Muhammad Sajjad
Roll No BSME-01113138
Section “C”

2. 11
Page 2 of 12
Global Warming

3. 11
Page 3 of 12
Abstract
Our planet Earth is a very beautiful. Allah has made this planet for his
most lovable creature, human being. But in the other sense human
being is destroying it in different ways. One of the main effect I am
going to discuss here that is “Global Warming”.
The term "global warming" is also used to refer to increases in average
temperature of the air and sea at earth's surface. Climate change is the
single biggest environmental crisis of our time. The Earth’s
atmosphere is overloaded with heat forming carbon dioxide which
effects large scale disruptions in climate with disastrous consequences.
We must act now to spur the adoption of cleaner energy sources at
home and abroad.

4. 11
Page 4 of 12
Contents
 Title page 01
 Topic page 02
 Abstract page 03
 Content page 04
 Introduction page 05
 Literature reviews page 07
 Analysis page 08
 Conclusion page 09
 Bibliography page 10
 Reference page 11

5. 11
Page 5 of 12
Introduction
‘Global warming is defined as an increase in the average temperature of the
Earth's atmosphere. It refers to continue rise in the average temperature of
Earth's climate system. Despite of the oceans' role in energy storage, the term
"global warming" is also used to refer to increases in average temperature of
the air and sea at earth's surface. Human interference has been detected in
warming of the atmosphere and the ocean, in changes in the global water cycle,
in reductions in snow and ice. It happens when greenhouse gases like 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.
Sea level rise is accelerating. Dangerous heat waves are becoming more
common. Extreme storm events are increasing in many areas. More severe
droughts are occurring in others. These are just some of the damages of global
warming, which are already having significant and harmful effects on our
health, our environment, and our communities. The 12 warmest years on record
have all occurred since 1998. 2012 was the hottest year ever recorded.
We are the cause:

6. 11
Page 6 of 12
We are overloading our atmosphere with carbon dioxide, which traps heat and
increase the planet’s temperature. Where does all this carbon come from?
The fossil fuels we burn for energy like coal, natural gas, and oil plus the loss
of forests due to deforestation.
These are the major causes of producing global warming. A majority of climate
scientists agree that global warming is happening and that human activity is the
primary cause.
The production of greenhouse gases in the atmosphere alters the radiative
balance of the atmosphere. The net effect is to warm the Earth's surface and
the lower atmosphere because greenhouse gases absorb some of the Earth’s
outgoing heat radiation and reradiate it back towards the surface which may
cause the global warming and other worst effects on human life.
Global climate change has already observable effects on the environment.
Glaciers have shrunk, ice on rivers and lakes is breaking up earlier, plant and
animal ranges have shifted and trees are flowering sooner. Effects that
scientists had predicted in the past would result from global climate change
are now occurring as loss of sea ice, accelerated sea level rise. Scientists
have high confidence that global temperatures will continue to rise largely
due to greenhouse gasses produced by human activities. It may also cause the
natural disastrous, poor air quality, spreading diseases etc.
The recent climatic events like the massive floods in Pakistan and India, the
Hurricane Katrina in the United States, the droughts in Australia, China,
Pakistan, and India are all the results of increased temperatures due to global
warming. During the 21st century, climatic disasters occurred five times as

7. 11
Page 7 of 12
frequently and killed or affected seventy times as many people. Between
2000 and 2004, an average of 26 climatic disasters was reported each year.
Literature reviews
 Climate change is a terrible problem, and it absolutely needs to be solved. It
deserves to be a huge priority. (Bill Gates)
 People tend to focus on the here and now. The problem is that, once global
warming is something that most people can feel in the course of their daily
lives, it will be too late to prevent much larger, potentially catastrophic
changes.
(Elizabeth Kolbert)
 The warnings about global warming have been extremely clear for a long time.
We are facing a global climate crisis. It is deepening. We are entering a period
of consequences. (Al Gore)
 Preservation of our environment is not a liberal or conservative challenge, it’s
common sense. (Ronald Reagan)
 Climate change is crap. (Tony Abbott )
 There is no question that climate change is happening; the only arguable point
is what part humans are playing in it. ( David Attenborough )
 We have to face the reality of climate change. It is arguably the biggest threat
we are facing today. (William Hague )

8. 11
Page 8 of 12
 I believe global warming and climate change are real threats to our planet.
(Andrew Cuomo)
 Europe is dying. That is one of the unsayable truths of our time. We are
undergoing the moral equivalent of climate change and no one is talking about
it. (Jonathan Sacks)
Analysis
As everyone knows, basically we are the main cause of global warming. You
can control the global warming by reducing the use of fossil fuels and better
control of air pollution caused by industries and power plants. Burning of
fossil fuels such as natural gas, coal, oil and gasoline raises the level of
carbon dioxide in the atmosphere, and carbon dioxide is a major contributor
to the greenhouse effect and global warming. You can reduce waste by
choosing reusable products instead of disposables. By recycling half of your
household waste, you can save 2,400 pounds of carbon dioxide annually.
You can take part in Global warming control by reducing the amount of
energy you need to heat and cool your home. Turn down the heat while you
are sleeping at night or away during the day and less driving means fewer
emissions. Besides saving gasoline, walking and biking are great forms of
exercise. Set your water heater at 120 degrees to save energy, and wrap it in
an insulating blanket if it is more than 5 years old. You should plant trees as

9. 11
Page 9 of 12
much as possible because photosynthesis absorbs carbon dioxide gas which
is the main cause of global warming. We should aware of these things so that
we can control the global warming and deaths of human beings.
Conclusion
In my opinion, global warming has not been solved yet because most people ,
governments and organizations are not taking it a serious issue. Global warming
has a major component of pollution, but to stop polluting is not the only scope
of the problem. We need to organize mankind to clean what has been polluted
already and to replace the old polluting business with new ones. Late but not
least, I think we need to celebrate small successes. Many people think their
effort will not be enough but because they cannot see there are millions of other
people and organizations who are achieving many other millions of small things
as well. Media has an important role to play in this last part.

10. 11
Page 10 of 12
Bibliography
 Global Warming: The Complete Briefing
By John Houghton

11. 11
Page 11 of 12
References
 http://en.wikipedia.org/wiki/Global_warming
 http://www.nrdc.org/globalwarming/
 http://www.ucsusa.org/global_warming/
 http://www.stopglobalwarming.org/
 http://www.climatehotmap.org/

12. 11
Page 12 of 12