global warming

2. GLOBAL WARMING

3.  Introduction
 Greenhouse Effects
 Causes
 Effects
 Ozone Layer
 Statistical Facts
 Future Worries
 How to overcome problem?
 Conclusion
CONTENTS

4.  Global warming is
the increase in
average temperature
of the oceans and
atmosphere, both
observed and
predicted.
INTRODUCTION

5.  Naturally occurring greenhouse
gases have a mean warming effect of
about 33 °C (59 °F).
 Water vapor 36–70 %
 Carbon dioxide 9–26 %
 Methane 4–9 %
 Ozone 3–7 %
 Clouds
GREEN HOUSE EFFECTS

7.  Natural Causes
• Beyond our Limit
 Man-made Causes
• As Much As Possible
MAJOR CAUSES

8.  Methane gas
 Sunspots
 Arctic Tundra
 Water Vapor
 Permafrost
NATURAL CAUSES

9.  Pollution
 Automobiles
 Deforestation
 Fertilizer Use
 Burning of Fossil Fuels
MAN-MADE CAUSES

10.  Increased in Sea Level
 Melting of Glaciers
 Changed in Climate
 Long summers
 Effects on plants and
Animals
 Skin Cancer
 Asthma
EFFECTS

11.  The ozone layer or ozone
shield refers to a region
of Earth's stratosphere
 It absorbs most of the
sun's UV radiation hence
work as a Protective
Shield
 Diseases of Skin
 Plants will be Damage
 Life cycle will be
disturbed
OZONE LAYER

12.  Hottest year was 2010
 $100 billion of damage
was caused by
hurricanes hitting the
U.S. coast in 2005 alone.
 It is also projected that
15-37% of all plant and
animal species could be
wiped out by global
warming by the year
2050.
STATISTICAL FACTS

13.  Up to 300,000 people a year
will die –partly from the spread
of tropical diseases.
 The average global air
temperature rose between 0.5
and 0.74 degrees C during the
past century.
 An average 2 degree C
warming is predicted by 2100.
STATISTICAL FACTS

14. Threats to Global Economies
Natural Disasters
Animal Habitats
Certain Species extinction
 Earth Dries Up and Increase in Deserts areas
Shortage of food
FUTURE WORRIES

15.  CNG and hydrogen operated
vehicles should be used.
 More no. of trees should be
planted.
 Chimneys in the Industries
should be upgraded so that
most of the effluents should
get filtered down there.
 Climate Policy
 Personal Action
HOW TO OVERCOME PROBLEM?

16.  Global warming is
caused by natural and
anthropological
activities
 Realize it as Global
threat
 Collective Efforts are
needed
 Big economies have
to contribute for the
most part
CONCLUSION