my presentation
TRANSCRIPT
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MAN BELIEVED THAT-
IN THE PAST
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TODAY
DEVLOPMENT
MEANS
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TO RAPE THE ENVIRONMENT THE MAXIMUM IN MINIMUM TIME
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One of the most
burning topics
today.
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Table Of
Contents
• What is ‘Global Warming’ ?
• Causes
• Effects
• What can be done ?
• ‘Global Warming’ Quiz
• Picture gallery
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What is Global
Warming ?
A slow but sure escalation inthe overall temperature of theEarth's atmosphere generallyattributed to the g r e e n h o u s ee f f e c t caused by increasedlevels of carbon dioxide,CFCs, and other pollutants iscalled G l o b a l W a r m i n g .
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TOC
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Causes
One of the most prominentcauses of the Global Warmingis the G r e e n h o u s e E f f e c t .
Back to
TOCGreenhouse
Effect
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Greenhouse Effect
The partial trapping of solarradiation by a planetaryatmosphere, similar to thetrapping of heat in a greenhouse.
B
a
c
k
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o
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O
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When greenhouse gaseslike carbon dioxide, methane,chlorofluorocarbon(CFC’s) etc.trap the outgoing solarradiations of the sunreflected by the surface ofthe earth and do not allow theheat to escape then this isknown as greenhouse effectwhich causes GLOBAL
WARMING.
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Effects
Global Warming has numerousharsh effects which arerepresented by these pictures:
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to
TOC
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Already seen impacts of
GLOBAL
WARMING
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15IPCC
The frequency of heavy precipitation events has
increased over most land areas
- Rainfall in Mumbai (India), 2005:
1 million people lost their homes
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16IPCC
Intense tropical cyclone activity has increased
in the North Atlantic since about 1970
- Hurricane Katrina, 2005: up to $200 billion cost estimate
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17IPCC
More intense and longer droughts have been observed over wider areas
since the 1970s, particularly in the tropics and subtropics
Ph
oto
cre
dit: G
oo
dP
lanet
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Mt. Kilimanjaro’ Glaciers are Melting Because of Global Warming
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What can be done ?
"As a society, we can bluntthe worsening of global warming byimmediately cutting back on ourwasteful energy usage. If we donothing, the effects will be muchworse."
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TOC
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Mitigation of Global
Warming
• Conservation• Reduce energy needs• Recycling
• Alternate energy sources• Nuclear• Wind• Geothermal• Hydroelectric• Solar• Fusion?
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‘Global Warming’ Quiz
This is a small and easy quizcontaining 5+2=7 multiple choicequestions based on GlobalWarming.
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TOC
Go to Question
1
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Question 1
Which gas is primarily andprominently responsible for globalwarming ?
• Nitrogen
• Argon
• Carbon dioxide
• Oxygen
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2
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Go to Question
2
Try again
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Go to Question
2
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Question 2
The depletion of what cancontribute to stronger UV raysreaching Earth?
•Ozone layer
•Oxygen
•Clouds
•AtmosphereGo to Question
3
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Go to Question
3
Try again
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Go to Question
3
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Question 3
Which of these depletes the ozone layer and causes Global Warming ?
•Nitrogen dioxide
•CFCs
•Ammonia
•None of the above
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4
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Go to Question
4
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Go to Question
4
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Question 4
Greenhouse gases in the atmosphere are always BAD for the human beings and the environment.
•True
•False
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5
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Go to Question
5
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Go to Question
5
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Question 5
Which of the following increasethe concentration of greenhousegases in the atmosphere ?
•Deforestation
•Excessive use of fossil fuels
•Landfill emissions
•All of the above
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6
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Go to Question
6
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Go to Question
6
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Question 6
Which indian government oraganisation has got the carbon credit from UN for its effort in cutting pollution?
Delhi metro
BEST service (Mumbai)
None of the above
Go to Question
7
Indian railways
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Go to Question
7
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Go to Question
7
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Question 7
The programme “Save our beaches” was
Started by which TV channel?
IBN 7
NDTV INDIA
HEADLINES TODAY
BBC INDIA
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Go to tocREPLAY
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Go to tocREPLAY
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Picture Gallery
To clarify the topics under Global Warming, here are some pictures:
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One of the upshots of Global Warming which will cause an increase in sea-level.
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The number of hurricanes will increase due to increase in temperature of marine water.
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A number of species will become extinct due to loss of habitat.
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Danger is
on verge
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