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 directions.

1. Green
House
Effect
Presented By:
SURYAKANT VERMA
Assistant Professor,
Dr. K. N. Modi Institute of Pharmaceutical
Education & Research, Modinagar
Mobile: +91-9760989460

2. Since part of this re-radiation is back towards
the surface, energy is transferred to the
surface and the lower atmosphere.
As a result, the temperature there is higher
than it would be if direct heating by solar
radiation were the only warming mechanism.
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 directions.

4. 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.

5. The greenhouse effect was
discovered by Joseph Fourier in
1824.
First reliably experimented on by
John Tyndall in 1858.
First reported quantitatively by
Svante Arrhenius in 1896.

6. Green House Gases
Burning of
Oil, Petrol
Engine
Industrialization
BurningofFossilFuel
CFC
NOX +Co2
NO+Co2
NOx + Co2
CFC
Much of it remains trapped
in the atmosphere by the
greenhouse gases, causing
our world to heat up
NH4

7. • 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’.

8. Greenhouse Gas Natural sources Man-made sources
Carbon Dioxide Organic decay, Forest fires,
Volcanoes
Burning fossil fuels – car
and factory emissions,
electricity generation
Methane Wetlands, Organic decay,
Termites
Natural gas & oil
extraction, Biomass
Burning, Rice cultivation,
Cattle, Refuse landfills
Nitrous Oxide Forests, Grasslands,
Oceans, Soils, Soil
cultivation; Fertilizers
Biomass burning; Burning
of fossil fuels
Chlorofluorocarbons (CFCs) None Refrigerators; Aerosol
spray propellants; Cleaning
solvents

9. 1. Faster Ocean warming and catastrophic sea level rising
2. Polar ice caps melting
3. Climate change due to Green House effect.
4. Health Problem

10. • 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-
HSBC BANK
BRITISH AND AMERICAN
TOBACCO
UNILEVER
GRAMEENPHONE
“HSBC BANK”
Obtain “the daily
star” green
management
award 2011.

11. 1. Use Green technology
2. reuse and recycle
3. Take steps at Home and Office
4. Learn Smarter car usage
5. Increase Social Awareness
6. Support ‘Emissions trading’
7. Support ‘Kyoto protocol’

12. • Water level rises of Bay of
Bengal
• Abrupt climate change
• Different skin diseases
• Causes natural calamities
• Impediment of agricultural
production etc.

13. Prevention is better than cure.
We should work towards a greener future.
Afterthought:
Save The World