GLOBAL ENVIRONMENTAL ISSUES AND SUSTAINABLE DEVELOPMENT

1. GLOBAL ENVIRONMENTAL ISSUES
AND SUSTAINABLE DEVELOPMENT
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2. What is Sustainable
Meeting the needs of the present
generation without compromising
the needs of future generation.
The world commission of
Environment and Development
1987(Our common future).
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3. INTRODUCTION OF:
1. LAND
2. ATMOSPHERE
3.HYDROSPHERE
4. BIOSPHERE
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4. LAND
Land Area 13,128,841
Hectares
Crop Land 1, 477,877 Hectares
Permanent 3.322.943 Hectares
pasture
Forest and 4,095,317
Hectares
Wood land
Wild area 3,486,097
Hectares
Population Density 403 (per 1000
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5. HYDROSPHERE
OCEAN WATER 97.3%
Only 0.007% of oceanic water
distributed to Terrestrial area
annually.
Average: Residence time = 10
days http://healthsafetyupdates.blogspot.in
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6. ATMOSPHERE:
Region Temp. Altitude
Significant
oC Miles
Chemical
Troposphere 15 to-56 0 to 11 N2 02
CO2
H20
Stratosphere - 56 to –2 11 to 50 O3
Mesosphere -2 to-92 50 to 85 O2+NO+http://healthsafetyupdates.blogspot.in
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7. BIOSPHERE
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8. GLOBAL ENVIRONMENTAL
ISSUES
 Ozone Depletion.
 Global Climate
Change.
 Sea Level Rise
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9. OZONE DEPLETION
In 1985 Ozone concentration above
Antarctica had plunged more than
40%
as compared to 1960 (Nature).
Most Scientist – Disbelief.
After several months, a hole forms in
ozone layer.
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10. OZONE
• At stratosphere Shield against
harmful ultraviolet radiation.
• Near ground as Green house
gas and health hazard.
• One chlorine atom can destroy
1 lac ozone molecule.
• Effects on life.
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11. OZONE DEPLETING
SUBSTANCE
CFC 11 for Plastic foam – 60 year
CFC 12 for refrigerant - 120 year
CFC 113 for solvent cleaning
electronic.
CFC 1l4 : 90 year &
Halon 1301, Halon 1211& 2402 for
fire
Extinguishers – 25 to 110 years.
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12. GLOBAL CLIMATE CHANGE
• Introduction:
• The Green House Effect:
Carbon dioxide, Nitrous oxide,
Methane and CFC.
• Ozone depletion
• Acid Rain
• Deforestation
• Global Warming & Agriculture
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13. SEA LEVEL RISE
Causes of Sea level rise:
• Global warming
• Expanding ocean water
• Melting mountain glaciers
• Polar ice sheets to melt or
slide down into ocean.
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14. Ice Potential for Sea Level Rise:
• Northern Hemisphere - 75 Mtr.
• Alpine glacier. - 30 to 60
Cm.
• Greenland and - 7 Mtr.
west Antarctic
• East Antarctic - 60 Mtr.
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15. Effects of Sea Level Rise:
• Costal Erosion.
• Inundation.
• Flooding and storm damage.
• Increase salinity in Estuaries
and
• Aquifers.http://healthsafetyupdates.blogspot.in
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16. SUSTAINABLE
DEVELOPMENT
Development:
Improving well being of
people.
• Use of Resources
• Degrading of Environment.
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17. The Nature of the challenge
• Population
• Water supply & Sanitation.
• Energy and Industry.
• Controlling pollution.
• Food demand.
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18. A Strategy for Sustainable
Development
• Natural Resources.
• Bio-resources.
• Concept of energy and
Alternative resources of energy.
• Ethnobotony.
• Case study.
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19. THANK YOU
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