The document defines the greenhouse effect as a process where greenhouse gases in the atmosphere absorb and re-radiate thermal radiation from the surface, trapping heat. It then explains that greenhouse gases like carbon dioxide, methane, and nitrous oxide absorb infrared radiation emitted from the Earth's surface and radiate it in all directions, warming the lower atmosphere and surface. The main sources of greenhouse gases are the burning of fossil fuels, deforestation, livestock, CFC refrigerants, and agriculture such as fertilizer use.

1. WHAT IS GREENHOUSE EFFECT
A process by which thermal radiation from a planetary
surface is absorbed by atmospheric greenhouse
gases, and is re-radiated in all directions.
THIS IS A BOOKISH DEFINITION
WE CAN SAY THAT…..
Heating of Earth due to the presence of greenhouse
effect

2. HOW DOES THE
GREENHOUSE EFFECT
HAPPENS

3. GREENHOUSES GASES
R
E
INFRARED R
RADIATIONS A
D
I
A
A T
B E
S D
O
R
B
E LOWERS THE
D ATMOSPHERE
TO WARM

4. SOME OF THE
GREENHOUSES GASES
RATIO

5. Greenhouse Gases
5%
13%
6%
Carbon Di-Oxide
Nitrous Oxide
Methane
76%
FluoroCarbons

6. MAIN NON-GASEOUS CONTRIBUTOR TO
GREENHOUSE EFFECT
CLOUDS
As it absorbs & emit infrared radiation in the
environment…
It have an effect on radiative properties of the
atmosphere

7. MAIN SOURCES OF
GREENHOUSE GASES
 Burning of Fossil Fuels & Deforestation
 Livestock enteric fermentation & manure
management
 Use of Chlorofluorocarbons {CFCs} in
refrigeration systems
 Agricultural Activities, like use of fertilizers

8. EFFECTS OF GHG ON ECOSYSTEM
 Many species of plants & animals face the
danger of extinction
 Increase in salinity of freshwater will affect
species of freshwater fish & plants
 Movement among tectonic plates beneath
the Earth

9. BEST EXAMPLE FOR GREENHOUSE EFFECT
CAR PARKING IN SUNLIGHT
 Glass of cars lets the sunlight trap inside the
car’s body
 Glass prevents heat to escape
 Thus, car goes heat up