In the name of Allah the Most Beneficent the Most Merciful
In the name of Allah the Most Beneficent the Most Merciful
Greenhouse Gases
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.
Introduction
But due to an unnatural inc in these gases
the atmosphere and resultantly the earth are
becoming unprecedentedly hot leading to
Global warming
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
Sequence
• Green House
• Greenhouse Effect
• Greenhouse Gases (GHG)
• Harmful Effects
• Conclusion
A Green House
A Green House
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
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 .
Greenhouse Effect
Greenhouse Effect
Greenhouse Effect
Greenhouse Effect
GHGs
NaturalCarbon Dioxide (CO2)Methane (CH4)Nitrous oxide (N2O)Water Vapours (H2O)Ozone (O3)
ManmadeCFCsHFCsCO
GHGs
GHGs
GHGs
GHGs
GHGs
Maj causes of inc GHGs Burning of fossil fuels Deforestation Excessive farming Industrial emissions
Harmful Effects
Harmful Effects
Harmful Effects
Harmful Effects
Harmful Effects
Harmful Effects
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
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
GHGs
GHGs
GHGs
Greenhouse Effect
Greenhouse Gases
Lt Col Naeem Ahmed RasheedMSc 36
GHGs
Greenhouse Effect
Greenhouse Effect
Greenhouse Effect
GHGs
GHGs
Harmful Effects