Greenhouse effect

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Greenhouse effect
It is estimated that the carbon dioxide
concentration in the atmosphere has gone up by 25
percent since the industrial revolution of 1789.
This has led to an increase of 0.1C in the
ocean temperature. While the Arctic ice was 6-7
mts. (20-23 ft.) in 1976 has reduced to 4-5 mts.
(13-17ft.) by 1987.
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Global warming
The climate change attributed to the Greenhouse
effect. It is estimated that by 2030, average
global temperatures will rise between 0.7-2 C
This would lead to increase in the average sea
level due to the melting of polar ice caps.
This could lead to the submergence of low lying
areas and islands around the world.
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Climate change
The various alterations\modifications happening
in climate over a period of time This is caused
by an increase in the concentration of greenhouse
gases in the atmosphere which inhibit the
transmission of some of the suns energy from the
earths surface to outer space These gases
include carbon dioxide, water vapor, methane,
chlorofluorocarbons (CFCs), and other chemicals
Due to deforestation, burning of fossil fuels
such as petrol, oil, coal and natural gas and
the release of CFCs from refrigerators and air
conditioners.
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Loss of Biodiversity
Change in the climate and transformation of
landscapes Change in Floristic and Faunistic
composition Many species reach status of
endangered, threatened Many of them will also be
soon extinct
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Values of biodiversity

• 1. Direct values consumptive use values
• 2. Indirect values non consumptive value
  (climate, soil, water)
• - Aesthetical, social and cultural value
• Consumptive use animals, fish, plants
• Productive use pesticide, medicinal, cultural,
  social, ethical
• Aesthetic value -

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• Environmental services
• Protection of water resources (vegetation, etc),
  soil formation and protection
• Nutrient storage and cycling
• Pollution break down and absorption
• Contribution to climatic stability
• Maintenance of ecosystems
• Recovery from unpredictable events

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What can we do?

• Reduce CFCs?
• Regulate fossil fuel burning?
• Regulate deforestation and forest fire?
• Reduce contribution of smoke to atmosphere?
• Entertain more green space?
• Plant more trees?

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