This ppt contains main points and important points about GLOBAL WARMING

1. GLOBAL
WARMING

2. What is global warming?

4. Difference
GLOBAL WARMING
is the increase of the
Earth’s average
surface temperature
due to a build-up of
greenhouse gases in
the atmosphere.
CLIMATE CHANGE
is a broader term that
refers to long-term
changes in climate,
including average
temperature and
precipitation.

5. Basic Question of Global Warming
1. What causes the earth’s climate to change?

6. 1. Green House Effects
Example : carbon dioxide (CO2), Methane, Ozone, Nitrous oxide,
Sulfur Hexafluoride, Hydrofluorocarbons and etc.

7. The Sun’s energy
passes through the
car’s windshield.
This energy (heat)
is trapped inside
the car and cannot
pass back through
the windshield,
causing the inside
of the car to warm
up.
Example of the
Greenhouse Effect

8. What are the causes of global warming ?
Man-made causes Natural causes

9. Melting of glaciers

10. Polar Bear
Extinction

11. Increased probability
and intensity of droughts
and heat waves

14. THESE…..

16. WHERE IS my
habitat…!!!

17. THIS….

18. ANTARCTICA – losing ice
faster..!!!!!!
BEFORE NOW

19. CO2 from
airplanes
CO2 from
vehicles

20. How Global Warming Works
Fossil fuels (coal, oil, natural gas)
Carbon Dioxide (CO2)
Greenhouse gases

22. At some places, it

23. At others……

24. SOMEWHERE it’s tooo…….ooo
HOT

25. WHEREAS At others tooo…..
COLD

27. THE HUMAN BEINGS

28.  Most scientists blame industrialization:
 Automotive Industry (low fuel economy)
 Oil companies (fossil fuels)
BECAUSE OF HIS GREEADY
NEEDS LIKE...

29.  Power plants (coal)
 Agri-business (biofuels, deforestation,
cattle producing methane)
 Logging Industry (deforestation)

33. • From 1971 to 2005 CO2 vehicle emissions
rose from 1.8 billion tons per year to 4.6
billion tons per year.
• The average global air temperature rose
between 0.5 and 0.74 degrees C during the
past century.
• An average 2 degrees C warming is predicted
by 2100.
• Sea level has risen between 10 to 25 cm in
the last 100 years.

34. The Earth is getting warmer.
What causes the warming is
hotly debated.

35. The Argument:
Human causes
(Anthropogenic): Carbon dioxide (CO2) exhaust from cars
and power plants.
Methane gas from waste
Deforestation

36. The Argument:
Natural causes: Some claim the sun is getting
hotter. Also, the earth goes
through natural cycles of
climate change.

37. Evidence that CO2 is Cause
carbon dioxide vs. global temperature graph

38. Is Global Warming for Real?

41. By: - RakeshS Sajjan