International-World-Ozone-Day power point

International-World-Ozone-Day

1. DISTRICT INSTITUTE OF EDUCATION TRAININGS, DEON

2. International World
Ozone Day
International World Ozone Day, observed annually on September 16th,
is a global event dedicated to raising awareness about the importance
of the ozone layer and the need for its protection.
SS
by Sukhjinder Singh
Science Master
GSSS Kotbakhtu

3. Layers Of The
Atmosphere
Thermosphere
Mesosphere
Troposphere
Stratosphere
Exosphere

5. What is the ozone layer?
1A Protective Shield
The ozone layer is a region
in Earth's stratosphere that
absorbs most of the Sun's
ultraviolet (UV) radiation,
which is harmful to life on
Earth.
2Composed of
Ozone Molecules
The ozone layer is mainly
composed of ozone (O3)
molecules, which are
formed when ultraviolet
radiation from the sun
breaks apart oxygen
molecules (O2).
3Essential for Life
The ozone layer plays a critical role in protecting life on Earth by
filtering out harmful UV radiation that can cause skin cancer,
cataracts, and damage to plants.

6. Importance of the ozone layer
Protects Life
The ozone layer shields Earth from
harmful UV radiation, protecting
living organisms from its damaging
effects.
Maintains Earth's Climate
The ozone layer contributes to the
regulation of Earth's temperature by
absorbing ultraviolet radiation, which
can influence atmospheric circulation
patterns.
Supports Ecosystems
The ozone layer protects ecosystems
from the damaging effects of UV
radiation, ensuring the survival of
plants and animals.

7. Threats to the ozone layer
Human-made chemicals
Certain human-made
chemicals, such as
chlorofluorocarbons (CFCs),
have been found to deplete
the ozone layer by reacting
with ozone molecules.
Industrial activities
Industrial processes, such as
the production of refrigerants,
aerosols, and solvents, have
released significant amounts
of ozone-depleting substances
into the atmosphere.
Agricultural practices
Some agricultural practices, such as the use of pesticides and
fertilizers, can also release ozone-depleting chemicals into the
atmosphere.

8. Antarctic Ozone Hole Evolution
1980 1990 2000 2010 2020
0
10
20
30
40
From 3.3 M km
2

to 24.8 M km
2

9. Size Of The Ozone Hole Over The
Arctic In 2020
24.8 M km
2

10. Ozone Depleting Substances
Substance
CFCs
Carbon tetrachloride
Halons
Methyl chloroform
Methyl bromide

11. Montreal Protocol and its impact
1
1987: Montreal Protocol
The Montreal Protocol, an international treaty, was signed to phase
out the production and consumption of ozone-depleting
substances.
2
1990s: Global Cooperation
Countries around the world worked together to implement the
Montreal Protocol and reduce their use of ozone-depleting
substances.
3
2000s: Ozone Layer Recovery
The Montreal Protocol's success has resulted in a gradual recovery
of the ozone layer, with projections showing that it will return to pre-
1980 levels by the middle of the century.

12. Ozone depletion and
climate change
Climate Change
Climate change can affect the ozone layer by altering
atmospheric circulation patterns, leading to changes in ozone
concentrations.
Ozone Depletion
Ozone depletion can contribute to climate change by allowing
more UV radiation to reach Earth's surface, affecting
temperature and weather patterns.
Interconnected Impacts
Ozone depletion and climate change are interconnected issues,
and addressing one requires addressing the other.

13. Individual actions to
protect the ozone
Recycle and Reuse
Support responsible disposal of
appliances and products that contain
ozone-depleting substances.
Choose Ozone-Friendly Products
Opt for products labeled as ozone-
friendly, such as refrigerators and air
conditioners that do not use CFCs.
Reduce Energy Consumption
Conserve energy by using energy-
efficient appliances and reducing your
reliance on fossil fuels, which contribute
to climate change.
Support Sustainable Practices
Support businesses and organizations
that are committed to environmental
sustainability and the protection of the
ozone layer.

14. Ozone-friendly technologies
and products
Refrigerators Hydrofluorocarbons (HFCs)
Air Conditioners Hydrofluorocarbons (HFCs)
Aerosols Hydrocarbons
Insulation Polyurethane foam

15. Global efforts to restore the ozone layer
Scientific Research
Scientists continue to monitor the
ozone layer and develop new
technologies to protect it.
International Cooperation
Countries work together to implement
the Montreal Protocol and monitor its
effectiveness.
Transition to Sustainable
Alternatives
The world is transitioning to ozone-
friendly technologies and reducing
reliance on ozone-depleting
substances.

16. World Ozone Day is an
opportunity to celebrate the
successes of the Montreal
Protocol and to raise
awareness about the ongoing
importance of protecting the
ozone layer. It is a day to
recognize the efforts of
scientists, policymakers, and
individuals who have
contributed to this global
effort.
Celebrating World Ozone Day

17. “Let's Take An Oath To
Protect The Ozone Layer
And Save Life On Earth This
World Ozone Day!”

18. Thank You
“
ਤੁਹਾਡਾਸਭਦਾਹੋਸ਼ਪੂਰਨਯਤਨਇਸਧਰਤੀਨੂੰ
”
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