global warming environment climate change trees

1. Causes & Impacts

2. GLOBAL WARMING
 VARIOUS IMPACT OF GLOBAL WARMING.
 CAUSES OF GLOBAL WARMING :
 GREENHOUSE EFFECT
 DEFORESTATION
 INDUSTRIAL EMMISSION
 EFFECTS OF GLOBAL WARMING :
 CLIMATE CHANGE
 SEA LEVEL CHANGE
 WATER DISBALANCE
 HUMAN HEALTH

3. GLOBAL WARMING
 It is gradual increase in
overall temperature of
the earth’s Atmosphere
generally attributed to
the greenhouse effect
caused by Increased
levels of carbon -di -
oxide,CFCs , and other
pollutants due to
human activity

4. Sun
Earth’s Temperature
Solar
Energy
Solar
Energy

5. Sun
Earth’s Temperature
Solar
Energy
Radiation
Cooling

6. Sun
Earth’s Temperature
Solar
Energy
Radiation
Cooling

7. Sun
Earth’s Temperature
Solar
Energy
Radiation
Cooling

8. Greenhouse Effect
Sun

9. Earth’s Atmospheric Gases
Nitrogen (N2)
Oxygen (O2)
Water (H2O)
Carbon Dioxide (CO2)
Methane (CH4)
Non-
Greenhouse
Gases
99%
Greenhouse
Gases
1%

10. Worldwide Carbon EmissionsCarbon(109metrictons)
0
1
2
3
4
5
6
7
8
1750 1800 1850 1900 1950 2000
Year
Liquid fuel
Total
Gas fuel
Solid fuel

11. Annual Carbon Emissions
Annual carbon emissions
Atmospheric CO2
Atmospheric CO2 average
1955 1965 1975 1985 1995 2005
0
4
6
8
2
Year
Carbon(109metrictons)

12. What causes Global Warming?
 Deforestation and pollution result to an increase
greenhouse gases (such as carbon-dioxide) around
earth’s atmosphere.
 These greenhouse gases
traps and absorbs
atmospheric heat and
ultimately causes Global
Warming (an increase earth’s
surface temperature).

13. Causes OF Global Warming?

14. DEFORESTATION
 Deforestation, clearance or
clearing is the removal of a
forest or stand of trees where
the land is thereafter converted
to a non-forest use. Examples
of deforestation include
conversion of forestland to
farms, ranches, or urban use.
Tropical rainforests is where
the most on
centrated deforestation occurs.

15. POLLUTION
Pollution is derived from
Latin word "polluere"
which means to defile.
Pollution is an
undesirable change in
the physical, chemical
or biological
characteristics of our
air, land and water that
can harmfully affect
human life or that of
other species, our
industrial processes,
living conditions and
cultural assests.

16. GREEN HOUSE GASES
 A greenhouse gas is any
gaseous compound in the
atmosphere that is capable
of absorbing infrared
radiation, thereby trapping
and holding heat in the
atmosphere. By increasing
the heat in the
atmosphere, greenhouse
gases are responsible for
thegreenhouse effect,
which ultimately leads to
global warming

17. Impact of Global Warming
 Climate Change
 Sea level change
 Water dis-balance
 Human health
 In future, on earth

18. How to prevent Global Warming?
The problem of Global Warming can be controlled by
minimizing the emission of greenhouse gases into the
environment. The following preventive steps would
help save the earth from the harmful effects of Global
Warming.

19. Laws
The Laws that governs
pollution and greenhouse
gases should be followed.

20. Reduction in thermal power
generating stations
Reduced dependence on
thermal power for our
electricity need would
help towards reducing
the quantity if carbon
dioxide in the
environment. The use of
fossil fuels for generating
conventional energy is a
major of greenhouse
gases.

21. We should not waste paper
We can save paper by
keeping documents in
electronic format and by
not printing emails.

22. Planting Trees
Trees absorb carbon
dioxide and releases
oxygen. Trees are helpful
in reducing the problem
of global warming.

23. CAR-PULL
Sharing our car. We can
share our car while going
to office or performing
other scheduled
activities. On one hand,
we will save money, and
on the other, we will emit
less greenhouse gases.

24. THANK YOU !

25. Climate Change
Global warming is
causing climate
change. The world’s is
becoming warmer
and warmer. There is
also prediction of
regional climate
changes along the
ecosystem.

26. Sea Level Change
One major consequence of
global warming arising out of
greenhouse effect is the rise in
sea level. Four major changes
take place prior to this. They
are: Thermal expansion,
mountain glacier melting,
Greenland ice sheet melting
and Polar ice sheet melting.
Thus, the coastal cities and
ports may be submerged under
sea-water. Many islands may
vanish from the earth surface as
well as from the world map.

27. Water Dis-Balance
Although changes in
sea-level have received
much publicity,
problems of water
availability are likely to
be more serious and
perhaps more expensive
to solve. In future,
warmer world will face
water crisis in some
parts while in other
regions it will be wetter
than it is now.

28. Human Health
The human health is put
at risk because of Global
warming. In recent
years, there have been
newer reports of spread
of major tropical
diseases with changing
climate. As the earth
becomes warmer, more
and more people are
likely to be affected by
tropical diseases.

29. In future, on earth
 IF THE THINGS DO
NOT CHANGE THEN
OUR EARTH WILL
BECOME A DEAD
PLANET IN FEW
CENTURIES ONLY.