Global warming cause and effect

1. GLOBAL WARMING
By,
Harish Kumar Lekkala
(117R1A0132)
Civil -II

2. What is global warming?
• Global warming is the rise in the
average temperature of Earth's
atmosphere and oceans

3. Introduction
• Is the world getting warmer?
• If so, are the actions of mankind to
blame for earth’s temperature
increases?
• What can/should be done about these
issues?

4. Why is global warming
happening?

5. Burning of Fossil Fuels
Pollution from coal,
natural gas, and oil

6. .

7. .

8. . 8

9. Greenhouse Gases
. 9
• Carbon dioxide
– combustion of solid waste, fossil fuels (oil, natural gas, and
coal), and wood and wood products
• Methane :
– production and transport of coal, natural gas, and oil. Methane
emissions also result from the decomposition of organic wastes
in municipal solid waste landfills, and the raising of livestock.
• Nitrous oxide
– agricultural and industrial activities, as well as during
combustion of solid waste and fossil fuels.
• Hydro Fluoro Carbons (HFCs),
Per Fluoro Carbons (PFCs),
Sulphur HexaFluoride (SF6),
– industrial processes.

10. Example of the
Greenhouse Effect
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.

11. 11
EffEcts
• Health
• Water resources
• Mountains
• Forests
• Deserts
• Coastal Zones
• Agriculture
• International

12. Households are Big Contributors to Climate Change
Of all greenhouse gas
emissions come from
households:
• Vehicles
• Home Heating
• Electricity

13. so how can Each of us
slow global warming now?

14. Simple Things To Do
Dress lightly when it’s hot instead of turning up
the air conditioning. Or use a fan.
Dress warmly when it’s cold instead of turning
up the heat.
Offer to help your parents keep the air filters on
your AC and furnace clean.
Walk short distances instead of asking for a
ride in the car.
Plant a tree. R ecycle.

15. Refrigerators
Replace your old refrigerator with
a new Energy Star:
Refrigerator release Chloro Floro
Carbons [CFC] .1 Chloro Floro Carbon
can break 1,00,000 oxygen atoms

16. Drive JUST 10 fewer miles per week
Annual savings:
motor vehicles release large amount
of carbondioxide in to atmosphere
Reduce your garbage by 10% through
greater recycling or reduced packaging
Annual savings:
Wash clothes in cold water only
Annual savings: