greenhouse gases and causes and impact of global warming
TRANSCRIPT
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In the name of Allah the Most Beneficent the Most Merciful
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Greenhouse Gases
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Introduction
If there had been no Greenhouse Gases
(GHG) there would have been no life on earth
GHGs trap the Suns’ heat in the atmosphere
and thus make life possible.
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Introduction
But due to an unnatural inc in these gases
the atmosphere and resultantly the earth are
becoming unprecedentedly hot leading to
Global warming
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Aim
• to apprise about the GHGs
• to apprise about the mech by which they trap
Suns’ heat energy in the atmosphere
• to apprise about their role in global warming &
what it can lead to
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Sequence
• Green House
• Greenhouse Effect
• Greenhouse Gases (GHG)
• Harmful Effects
• Conclusion
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A Green House
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A Green House
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Greenhouse Effect
If there had been no atmosphere around the Earth
its’ temp would have fallen by 30 degrees to a
frosty -15 C, making life impossible on the planet
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Greenhouse Effect
GHGs are gases which though constituting even
less than1% of the total atmospheric gases are
responsible for retaining more than 90 % of the
Suns’ energy in the Earths’ atmosphere .
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Greenhouse Effect
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Greenhouse Effect
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Greenhouse Effect
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Greenhouse Effect
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GHGs
NaturalCarbon Dioxide (CO2)Methane (CH4)Nitrous oxide (N2O)Water Vapours (H2O)Ozone (O3)
ManmadeCFCsHFCsCO
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GHGs
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GHGs
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GHGs
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GHGs
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GHGs
Maj causes of inc GHGs Burning of fossil fuels Deforestation Excessive farming Industrial emissions
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Harmful Effects
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Harmful Effects
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Harmful Effects
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Harmful Effects
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Harmful Effects
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Harmful Effects
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Harmful Effects
The Kyoto ProtocolCommits countries to reduce GHG emissions by 5% of 1990 lvls by 2012
Developing countries – including China, India, Brazil and South Africa – would face no restriction on their emissions
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CONCLUSION
Global warming is a fact and is on the inc; hence
unless urgent measures are taken by all
countries the world be passing thru very catalytic
times
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GHGs
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GHGs
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GHGs
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Greenhouse Effect
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Greenhouse Gases
Lt Col Naeem Ahmed RasheedMSc 36
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GHGs
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Greenhouse Effect
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Greenhouse Effect
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Greenhouse Effect
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GHGs
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GHGs
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Harmful Effects