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 Changing climate
 Causes of climate
change
 Effects of climate
change
 Statistical Statement
 Illustrate the climati...
• Climate change refers to seasonal changes over a long
period of time.
• Worldwide, people are paying serious attention t...
Climate
change
Natural Factors
Volcanic eruptions
Ocean current
Earth orbital changes -
Solar variations
Forest fire
Artif...
Natural Factors
• Volcanic eruptions
• Ocean current
When a volcano erupts it throws out large
volumes of sulphurdioxide (...
Forest fire
Earth orbital changes
The earth makes one full orbit around the
sun each year. It is tilted at an angle of
23....
Human Activities
There is strong evidence that the climate
change over the last half-century has been
caused largely by hu...
• Emission of green house
gases such as…
• Solar radiation
51% of solar radiation absorb by earth.
20% scattered by the cl...
Effect of greenhouse gases.
Nitrous oxide
Water vapor
Carbon dioxide
Methane
Sulfur hexafluoride
Greenhouse gases trap the...
Global Warming
Global Warming is the increase of Earth's average surface temperature
due to effect of greenhouse gases.
10...
 Sea level rising.
 Global temperature is rising.
 Health risk.
 Melting polar icebergs and glacier.
 Arctic sea ice ...
Melting Of Glacier
Nearly 97% of Greenland's surface ice sheet thawed during a four
day period in July - more than it ever...
Acid Rain
Acid rain is a rain or any other form of precipitation that is unusually acidic. Acid
rain is caused by emission...
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Globally, power generation
emits nearly 10 billion tons
of CO2 per year.
Use Alternative energy such as
Wind power Solar e...
Worldwide, motor vehicles currently emit well over 900 million metric
tons of CO2 each year.
Use Electronic Car or Solar c...
Each year worldwide, currently over 93 million metric tons of CFC emit by
AC, Refrigerator, Aerosol and Body spray etc. 26...
Earth's total forest area continues to decrease at about 13 million hectares
per year.
 Planted 2 tree against 1 tree cut...
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Global climate change

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Climate change refers to seasonal changes over a long period of time.
Worldwide, people are paying serious attention to climate change.
Because so many systems are tied to climate, such as, people, plants and animals live, such as food production, availability and use of water, and health risks.

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  • While there are many substances that act as greenhouse gases, two of the most important are water and carbon dioxide, or CO2.
  • Global climate change

    1. 1. 1sakil.iubat@gmail.com
    2. 2.  Changing climate  Causes of climate change  Effects of climate change  Statistical Statement  Illustrate the climatic situation  Recommendation  Question and Answer Secession 2sakil.iubat@gmail.com
    3. 3. • Climate change refers to seasonal changes over a long period of time. • Worldwide, people are paying serious attention to climate change. • Because so many systems are tied to climate, such as, people, plants and animals live, such as food production, availability and use of water, and health risks. 3sakil.iubat@gmail.com
    4. 4. Climate change Natural Factors Volcanic eruptions Ocean current Earth orbital changes - Solar variations Forest fire Artificial Factors Human activities Emission of green house gases Solar radiation 4sakil.iubat@gmail.com
    5. 5. Natural Factors • Volcanic eruptions • Ocean current When a volcano erupts it throws out large volumes of sulphurdioxide (SO2), water vapour, dust, and ash into the atmosphere The oceans are a major component of the climate system. Ocean currents move vast amounts of heat across the planet. 5sakil.iubat@gmail.com
    6. 6. Forest fire Earth orbital changes The earth makes one full orbit around the sun each year. It is tilted at an angle of 23.5 to the perpendicular plane of its orbital path. Changes in the tilt of the earth can lead to small but climatically important changes in the strength of the seasons. A wildfire is any uncontrolled fire in an area of combustible vegetation that occurs in the countryside or a wilderness area. Natural Factors 6sakil.iubat@gmail.com
    7. 7. Human Activities There is strong evidence that the climate change over the last half-century has been caused largely by human activity, such as the burning of fossil fuels and including agriculture and deforestation." 7sakil.iubat@gmail.com
    8. 8. • Emission of green house gases such as… • Solar radiation 51% of solar radiation absorb by earth. 20% scattered by the clouds19% absorb by clouds and atmosphere and 6% scattered by atmosphere,4% reflected by surface. water vapour, carbon dioxide, methane, nitrous oxide, ozone and CFC's. 8sakil.iubat@gmail.com
    9. 9. Effect of greenhouse gases. Nitrous oxide Water vapor Carbon dioxide Methane Sulfur hexafluoride Greenhouse gases trap the infrared heat that is trying to escape back into space. Increase in the global average surface temperature . Greenhouse effect, contributing to global warming. The atmospheric trapping, or reflection of radiant energy back toward the earth. 9sakil.iubat@gmail.com
    10. 10. Global Warming Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases. 10sakil.iubat@gmail.com
    11. 11.  Sea level rising.  Global temperature is rising.  Health risk.  Melting polar icebergs and glacier.  Arctic sea ice loss. 11sakil.iubat@gmail.com
    12. 12. Melting Of Glacier Nearly 97% of Greenland's surface ice sheet thawed during a four day period in July - more than it ever has in the last 30 years, NASA satellite data shows.. 12sakil.iubat@gmail.com
    13. 13. Acid Rain Acid rain is a rain or any other form of precipitation that is unusually acidic. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxides, which react with the water molecules in the atmosphere to produce acids. 13sakil.iubat@gmail.com
    14. 14. 14sakil.iubat@gmail.com
    15. 15. 15sakil.iubat@gmail.com
    16. 16. 16sakil.iubat@gmail.com
    17. 17. 17sakil.iubat@gmail.com
    18. 18. 18sakil.iubat@gmail.com
    19. 19. 19sakil.iubat@gmail.com
    20. 20. 20sakil.iubat@gmail.com
    21. 21. 21sakil.iubat@gmail.com
    22. 22. 22sakil.iubat@gmail.com
    23. 23. 23sakil.iubat@gmail.com
    24. 24. Globally, power generation emits nearly 10 billion tons of CO2 per year. Use Alternative energy such as Wind power Solar energy etc 24sakil.iubat@gmail.com
    25. 25. Worldwide, motor vehicles currently emit well over 900 million metric tons of CO2 each year. Use Electronic Car or Solar car as alternative of Diesel, Petrol or gas engine. 25sakil.iubat@gmail.com
    26. 26. Each year worldwide, currently over 93 million metric tons of CFC emit by AC, Refrigerator, Aerosol and Body spray etc. 26sakil.iubat@gmail.com
    27. 27. Earth's total forest area continues to decrease at about 13 million hectares per year.  Planted 2 tree against 1 tree cutting. 27sakil.iubat@gmail.com
    28. 28. 28sakil.iubat@gmail.com
    29. 29. 29sakil.iubat@gmail.com
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