Global warming is caused by increased greenhouse gases trapping heat in the atmosphere. The main greenhouse gases are carbon dioxide, methane, and nitrous oxide, which are emitted through human activities like burning fossil fuels and deforestation. Deforestation damages habitats and biodiversity by removing trees. Permafrost and tundra soils store large amounts of carbon that could be released as those regions warm, exacerbating global warming. Solutions proposed include reducing CO2 emissions from vehicles and power plants, developing alternative energy sources, and promoting energy conservation and efficiency.

2. What is Global Warming?
Global Warming is the increase in the average
temperature of the Earth’s near-surface air and
oceans since the mid-twentieth century and its
projected continuation.

3. What is the Greenhouse
Effect?
The Greenhouse Effect is the heating of the surface
of a planet or moon due to the presence of an
atmosphere containing gases that absorb and emit
infrared radiation . Greenhouse gases which include
water vapor,CO2 and CH4 are almost transparent to
solar radiation but strongly absorb and emit infrared
radiation.

4. The Main Causes
This “Earth-Harming” Phenomenon is mostly caused by:
 Carbon Dioxide Emittion from Cars,Buildings,Airplanes and
Power Plants
 Nitrous-Oxide
 Methane
 Permafrost
And many more gases that we will see further…

5. 140%
120%
Carbon
100%
Dioxide(CO2)
Carbon Dioxide commonly known as 80%
CO2 is one of the most harming
gases for the atmosphere of our
60%
planet.This “eugene gas” is emitted
from car exhausts,building
chimneys,airplanes and power 40%
plants.The U.S is the central air
pollution core,as its CO2 emittion
represents 60% of the global CO2 20%
emittion. To the right,is presented a
chart that shows the global CO2 0%
emittion and the GWP from 2002 until
today.

6. 400%
350%
Methane(CH4) 300%
250%
Methane is a chemical compound with
the molecular formula CH4.It is the
200% Air
simplest alkane, and the principal Pollution
component of natural gas. Methane
was discovered and isolated by 150% G.W.P
Alessandro Volta between 1776 and
1778 when studying marsh gas from
Lake Maggiore.It is a greenhouse gas 100%
with a high GWP of 72(over 20 yrs.) or
25(over 100 yrs.)Methane in the 50%
atmosphere is eventually
oxidized, producing CO2 and
water(H20). 0%
2004
2002
2003
2005
2006
2007
2008

7. 14%
12%
Nitrous
Oxide(N2O) 10%
N2O, commonly known as happy or
laughing gas, is a chemical
8%
Air
compound with the chemical
formula N2O. At room Pollution
6%
temperature, it is a cordless non- GWP
flammable gas,with a pleasant
,slightly sweet and odour taste.It is 4%
used in surgery ans dentistry.N2O
reacts with the ozone and is the
main naturally occuring regulator of 2%
stratospheric ozone.It is also a
major greenhouse gas.It has 298
0%
times more impact per unit weight
2003
2002
2004
2005
2006
2007
2008
than carbon dioxide.

8. Deforestation
Deforestation is not logging or burning of trees in the forested area. There are
several reasons for doing so: trees or derived charcoal can be sold as a
commodity and used by humans, while cleared land can be sold as
pasture, plantations of commodities and human settlement.The removal of
trees without sufficient forestation has resulted in damage to
habitat, biodiversity loss and aridity. Deforested regions often degrade into
wasteland. The major problems deforestation can cause are:
Atmospheric
Hydrological
Ecological
Soil

9. Permafrost
Permafrost is a solid structure of frozen soil, extending to depths of 2.200
metres in some areas of the arctic and subarctic regions containing
grasses, roots, sticks, much of it dating back to 30.000 years.About 25% of the
areas of the Northern Hemisphere hold permafrost, which is defined as soil
whose temperature has been 32 degrees Fahrenheit(0 degrees Celsius)for a
period of at least 2 years. Permafrostis under 85% of Alaska land surface and
much of Canada, Scandinavia and Siberia and holds about 14% of the world’s
carbon.
The hard permafrost on which is built homes and other buildings,can,with rising
temperatures turn into a soft material causing subsidence and damage to
buildings.Ground instability would cause erosion,affect
terrain,roads,slopes,foundations and more.

10. Tundra
A name very suited to environs of the arctic and subarctic,tundra means
“treeless plain” in Finnish.The tundra is a major segment of a particular
region having distinctive vegetation,animals and microorganisms adapted to
a unique climate(biome) home to about 1700 kinds of plants including
shrubs,mosses,grasses,lichens and 400 kinds of flowers.About 50 billions
tons of carbon are estimated to be hels in the frozen state of tundra,and now
the tundra is beginning to become to a source of carbon dioxide.

11. Natural Remedies
 Restrict car and power plant CO2 emittion.
 Develop varied technologies for use of alternative energy.
 Restrict Carbon Dioxide and other greenhouse gases emittion.
 Address energy conservations nearourarea.
 Reduce our energy bills with use of fluorescent lights and
environmentally friendly refrigerators.

12. If bees disappeared off the face of the globe,
mankind would have four years of life left.
Albert Einstein

13. WE MUST STOP!

14. This presentation was
created and published
by :
Harris Zacharis
zacharisharris@gmail.com
Copyright 2008-2009