Global warming


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It's about global warming. and it contains about pollution too.

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Global warming

  1. 1. Man did not weave the web of life- he is merely a strand in it. Whatever he does to the web, he does to himself chief Seattle 1854
  2. 2. • Environmental Pollution – Water pollution – Land pollution – Air pollution • Global Warming – What is global warming? – What is green house effect? – Consequences of global warming – How to reduce global warming? – What we can do for reduce?
  3. 3. • Mainly there are three types of environmental pollution. They are Land pollution Water pollution Air pollution
  4. 4. • Land is the place where human and all the other living beings are living. • In the Earth we have only 25% of landscape for living. • Though we have 25% of landscape we can’t live all the space that we have.
  5. 5. • Land pollution is another major issue in Environmental pollution • It harms all the human beings and whole environment • Mostly it is caused by human activities. • There are different sources for land pollution.
  6. 6. • Increasing mechanization • Pesticides • Mining • Increasing waste disposal • Increasing non-biodegradable waste – Plastic – Glasses – Etc..
  7. 7. • Increase in urbanization. • Increase in agricultural land • Domestic waste • Increase in urbanization. • Increase in agricultural land • Domestic waste
  8. 8. • Exterminate the wildlife. • Acid rain kills trees and other plants. • Trees that provides food and shelter is destroyed. • It can seriously causes the balance of nature, and, in extreme cases, can cause human too. • Pesticides can damage crops, kill vegetation, and poison birds, animals, and fish.
  9. 9. • Encourage farmers for organic farming • State proper garbage disposal • Recycle garbage • Reduce use of pesticides
  10. 10. • Water is one of our basic needs in our life. • ¾ of our world is covered by the water ,so that our world is called as water planet. • The world has various types of water but we used only 1% of it. –Oceans water -96.5% –Ground water -1.7% –Ice caps -1.7% –In the air -0.001%
  11. 11. • Water pollution is the major issue in the world. • Water pollution affects drinking water, oceans, rivers and lakes. • It’s harms to human health and natural environment. • Mostly it is caused by human activities. • Water pollution is considered under two types. – Point source pollution- pollution comes from a single source – Non-point source pollution-pollution comes from many sources
  12. 12. • Waste water - water from domestic and industrial process. • Agricultural - agricultural processes such as tillage pollution ,use of pesticides, fertilizers. • Oil pollution - oil leaks from ships, oil from factories • River dumping – dump of garden cuttings, electronic waste and steal products.
  13. 13. • Poisonous drinking water- causes many diseases • Poisonous animal’s food- kills fishes • Acid rain • Unbalanced river and lake ecosystem • Disrupts the natural food chain • Disrupts water cycle • Biodiversity loss
  14. 14. • Filter the water when drinking. • Releasing water from factories after cleaning. • Decrease the use of chemicals for agricultural needs. • Checks the places where oil leaks in ships. • Stop dumping in sea and river. • Create an act to stop polluting water.
  15. 15. • The earth is surrounded by the air. • It’s contains oxygen which is essential for us to live. • It contains – Nitrogen – Oxygen – Carbon dioxide – Water vapor and other oxides.
  16. 16. • How it happen?
  17. 17. • Gases from factories and vehicles. • Wildfires • By sending rockets • From war places
  18. 18. • Difficult to breath. • Bio diversity loss. • It is causes diseases . • Poisonous air. • Harmful to Orson (O3) Layer • Both N2 and CO2 Cycles are going out of order • Increase the percentage of Greenhouse Gasses
  19. 19. N2 Cycle
  20. 20. • Use public transport to reduce the number of vehicles. • Growing trees around the house to produce oxygen.
  21. 21. • Global warming is rising average temperature of Earth's atmosphere and oceans. • It happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This called green house effect.
  22. 22. • Sunlight brings energy into the climate system; most of it is absorbed by the oceans and land. • Heat (infrared energy) radiates outward from the warmed surface of the Earth.. • Some of the infrared energy further warms the Earth. • Some of the infrared energy is emitted into space. • Harmful to Orson(O3) Layer
  23. 23. Some solar radiation reflect by the earth and atmosphere Most radiation is absorbed by the earth surface and warm it Solar radiation passes through the atmosphere Some of infrared radiation is absorbed and re emitted by the green house gas molecules Tradition is converted to heat
  24. 24.  Carbon dioxide (CO2)  Methane (CH4)  Nitrous oxide (N2O)  Hydro fluorocarbons (HFCs)  Per fluorocarbons (PFCs)  Sulphur hexafluoride (SF6)
  25. 25.  Increase temperature.  Melting ice and glaciers.  Rising sea level.
  26. 26.  Habitat damage and species affected.  Ocean acidification.  Coral reef destruction  Hurricanes, droughts, extreme weather.  Increase in human death and disease.
  27. 27.  Wind power  Solar power  Fuel efficiency  Recycle
  28. 28.  Conserve energy:  Buy energy efficient products  Buy products that have reusable or recyclable packaging  Reduce use of car (walk instead)
  29. 29.  Turn off the computer or TV when you are not using it.  Keep rooms cool by opening shutters and reducing the use of air condition.  Use compact fluorescent bulbs.  Turn off lights and fans when you leave a room.  Plant trees.
  30. 30. • Environmental pollution and it’s sources • How to reduce those pollutions? • What is global warming? • Consequences of global warming • How to reduce global warming? • What we can do for reduce?
  31. 31. • The warnings about global warming have been extremely clear for a long time. We are facing a global climate crisis. It is deepening. We are entering a period of consequences. AL GORE, speech at National Sierra Club Convention, Sept. 9, 2005 • Therefore we all need to participate to reduce GLOBAL WARMING!!!
  32. 32. Q & A • Any Questions?
  33. 33. References • • arming/f/greengases.htm