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The GreenHouse Effect |
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The phenomenon of trapping and radiating heat by GHGs such as Carbon dioxide, Methane etc in the atmosphere is called 'greenhouse effect'. Since green house gases absorb the radiant heat energy, they are known as radiatively active gases. Water vapor, Carbon dioxide, Nitrous oxide (N2o), Methane (CH4) and ozone (O3) are primary green house gases in the earth's atmosphere. On a molecule for molecule basis, methane is 21 times more effective, N2o is 310 times more effective and Chlorofloro carbon is 12,000 to 15,000 more effective than CO2 in trapping atmospheric heat. It is the heat trapping quality of GHGs is also called global warming potentiality which warms the planet and makes the earth habitable. The problem is the extra warming resulting from the rise in concentration of GHGs during the last century. The extra GHGs come mostly from large scale burning of fossil fuels from industries and fossil fuel vehicle, from intensified agricultural activity and deforestation, and from various other land use changes, mining, and other human activities.
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21 Comments
It's a sad thing that some still believe that global warming is just a scientist's theory :( They should learn the "evilness" of GHGs..
Posted 24-02-2013 16:57
You are right, Prakash GHGs are necessary evils,
Posted 14-01-2013 23:15
In these days GHGs are appearing as Necessary evil .
Posted 13-01-2013 00:49
Thanks rajashree
Posted 02-01-2013 08:03
You are right AMAN
Posted 02-01-2013 08:02
You are good reporter,
Thanks
Posted 02-01-2013 02:21
the phenomenon due to which , life is possible on earth is now becoming dangerous , due to activities of humans! let us all try to save earth by trying to reduce emission of greenhouse gases
Posted 02-01-2013 01:00
Thanks Shiva Jyoti....I'll try to make my articles more perfect
Posted 01-01-2013 23:58
Thanks Aman
Posted 01-01-2013 23:51
I support You Umesh
Posted 01-01-2013 23:50
You are right Guru
Posted 01-01-2013 23:48
Yeah Simran, Alberta is true
Posted 01-01-2013 23:44
Avni Here we are talking about anthropogenic climate change not the natural climate change which is essencial
Posted 01-01-2013 23:43
Green House Gas effect is the major cause of Climate change
Posted 01-01-2013 23:40
Your report is very perfect,
Need to reduce GHG effect.
Posted 01-01-2013 23:14
very informative
Posted 01-01-2013 23:14
very true...our actions are more in focus
Posted 01-01-2013 20:29
green house gases one of the main reasons for global warming
Posted 01-01-2013 19:29
Very True Alberta
Posted 01-01-2013 18:36
It is ironic how the greenhouse effect made life on Earth possible. Without naturally occurring greenhouse gases such as water vapour, carbon dioxide, methane and nitrous oxide, the Earth's surface temperature would be 33°C cooler - a chilly -18°C rather than the tolerable 15°C.
However, since the beginning of industrialization, concentrations of these gases have increased substantially leading to rise in he Earth's average temperature because of emissions of greenhouse gases from human activity.
As it is said, too much of anything is bad!
Posted 01-01-2013 17:01
Major culprit of global warming!
Posted 01-01-2013 16:38