Green House Effect
& Exposures in
Dep. Of Community Medicine
The greenhouse effect is a process by which thermal
radiation from a planetary surface is absorbed by
atmospheric greenhouse gases, and is re-radiated in all
Since part of this re-radiation is back towards the surface,
energy is transferred to the surface and the lower
As a result, the temperature there is higher than it would
be if direct heating by solar radiation were the only warming
The greenhouse effect is a warming near
the Earth's surface that results when the
Earth's atmosphere traps the sun's heat.
The atmosphere acts much like the glass
walls and roof of a greenhouse.
The greenhouse effect was
discovered by Joseph Fourier in
First reliably experimented on by
John Tyndall in 1858.
First reported quantitatively by
Svante Arrhenius in 1896.
Green House Gases
Much of it remains trapped
in the atmosphere by the
greenhouse gases, causing
our world to heat up
Burning of Fossil Fuel
NOx + Co2
• Human activities are enhancing the Greenhouse Effect,
because we are continually adding heat-trapping greenhouse
gases to the atmosphere by factory emissions, vehicle
emissions, etc. Such gases include carbon dioxide, carbon
monoxide, chlorofluorocarbons, methane and ozone. The
table on the next slide shows some examples of natural and
man-made sources of some ‘Greenhouse Gases’.
Faster Ocean warming and catastrophic sea level rising
Polar ice caps melting
Climate change due to Green House effect.
Many reputed organization now taking several steps for reducing greenhouse gas
effect. They are doing green management process for reducing greenhouse gas
effect. Among them some of those company’s name given below-
Obtain “the daily
BRITISH AND AMERICAN
Use Green technology
reuse and recycle
Take steps at Home and Office
Learn Smarter car usage
Increase Social Awareness
Support ‘Emissions trading’
Support ‘Kyoto protocol’
• Water level rises of Bay of
• Abrupt climate change
• Different skin diseases
• Causes natural calamities
• Impediment of agricultural
Prevention is better than cure.
We should work towards a greener future.
Save The World
Dep. Of Community