I hope this presentation will give an idea to all over world about global warming and their consequences in the form of natural disasters.

1. Presented By:
Deepak Kumar
Environmental Science
C.C.S. University Meerut
Email id: deepak.environment2009@gmail.com

2. 
Gradual rise in atmosphere & ground surface
or lower atmosphere temperature ie.
Troposphere & consequent change in global
radiation balance.

As a result of enhanced greenhouse effect
increase in the mean temperature of earth’s
lower atmosphere.

5. incoming
outgoing

6. 78% nitrogen
20.6% oxygen
< 1% argon
0.4% water
vapor
0.036% carbon
dioxide
traces gases:
Ne, He, Kr, H, O3
Methane,
Nitrous Oxide
Composition of Atmosphere

7. 
Carbon Dioxide (387PPM)
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Methane (1750 PPb)
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Source: Fossil fuel burning, deforestation
Anthropogenic increase: 30%
Average atmospheric residence time: 500 years
Source: Rice cultivation, cattle & sheep ranching,
decay from landfills, mining
Anthropogenic increase: 145%
Average atmospheric residence time: 7-10 years
Nitrous oxide (320 PPb)
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Source: Industry and agriculture (fertilizers)
Anthropogenic increase: 15%
Average atmospheric residence time: 140-190
years

8. 
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CFC’s (Chloroflouro carbons 290 PPt)
Sources: Refrigeration units, Air-conditioning,
aerosol spray cans, solvent etc.
Anthropogenic increase 4%/year
Residence time 22-102 years

9. Contribution of GHG's to
Global Warming(%)
6%
14%
CO2
CH4
CFC's
20%
60%
N2O

10. Relative Contribution of Human
activities in Global Warming
13%
14%
49%
24%
Burning of fossils fuel
Industrial process
Deforestation
Agriculture

12. 
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Elevated Temperature of Biosphere
- Melting of Polar Ice Cap
- Rise in Sea level
Climate Change
- Changing weather Pattern
- High precipitation during shorter period
Ecosystem Destruction
- Coral bleaching etc.
Crop Yield
Human Health

13. Effects

14. Effects
Rainfall in Mumbai (India) 2005 1 million people lost their homes

15. Effects

Regions where major coral reef bleaching
events have taken place during the past
15 years
Yellow spots indicate major bleaching
events

16. Effects
Effects of Hurricane Katrina 2005 in USA

17. 
Alternative source of energy

Generation of Carbon Sink
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Carbon Trading

Imposing Carbon Tax

18. UNFCC (United Nations Framework Convention on
Climate Change)
Stabilize atmospheric concentration of GHG’s at a level
that would prevent dangerous anthropogenic
interference with climate system.
Kyoto Protocol (Japan)
It is an agreement for the reduction of GHG’s and CFC’s
emissions by the nations.

19. 
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Increasing human population play important
role to increasing levels of GHG’s emission.
Increasing concentration of GHG’s gases may
lead to more severe catastrophes than
earlier.
Today’s demand to take action to reduce the
emission of GHG’s at the global level. If it
couldn't implemented, it will be a question for
forever
Is life exist in future?

20. 
Environmental Science By;
S.C Santra

IPCC 4th Assessment Report 2007