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Greenhouse effect With Global Warming (Earth and Space)
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- 3. What is aGREENHOUSE ? In temperate countries, a greenhouse is used to grow seedlings in the late winter and early spring and later planted in the open field when the weather is warmer. Greenhouses also protect plants from weather phenomena such as snowstorm or dust storm. In tropical countries, a greenhouses are used by commercial plant growers to protect flowering and ornamental plants from harsh weather conditions and insect attack.
- 5. Greenhouses range in sizefrom small sheds to a very large buildings. They also vary in terms of types of covering materials. Some are made of while others are made of .
- 7. allow sunlight to enterbut prevent from heat from escaping. The transparent covering of the greenhouse allows visible light to enter without obstruction. It warms the inside of the greenhouse as energy is absorbed by the plants, soil and other things inside the building. Air warmed by the heat inside is retained in the building by the roof and wall. The transparent covering also prevent the heat from leaving by reflecting the energy back into the walls, and preventing outside winds from carrying it away.
- 10. is a process bywhich the Earth’s atmosphere warms up. The trace gases that allows the heat from the sun to enter and prevent to escape in our atmosphere is called
- 12. Earth’s atmosphere iscompared to a greenhouses. Aside from the nitrogen and oxygen, Earth’s atmosphere contains trace gases such as carbon dioxide,CO2, water vapor, methane, CH4, and ozone, O3. Like the glass in the greenhouse, the trace gases have similar effect on the Sun’s rays. They allow the sunlight to pass through, resulting in warming up the of the Earth’s surface. But they absorb the energy coming from the Earth’s surface, keeping the Earth’s temperature suitable for life on Earth.
- 15. The greenhouse effect isa natural process and it warms the Earth. Without the greenhouse effect, Earth would be , too cold for living things, such as plants and animals.
- 22. Green House Gases Burningof Oil, Petrol EngineCFC NOX +Co2 NO+Co2 NOx + Co2 CFC Some of the energy passes back into space Much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up NH4 Burning of Oil, Petrol Engine
- 24. The increasing temperature phenomenon isknown as means that all countries and people around the world are affected even if that country is not contributor of greenhouse gases.
- 27. 2. - comes fromgrazing animals as they digest their food and from decaying matter in wet rice fields. - released from buried wastes such as left-over food, garden wastes, and animal wastes collected at home and sent to dumpsites. When lots of wastes compressed and packed together, they produced methane. Coal mining also produces methane.
- 30. Natural Greenhouse Gases •N2 and O2 do not have absorption in the IR light , therefore, it has no role in setting the surface temperature of the planet . • Greenhouse gas are efficient in absorbing IR light • The most important greenhouse gases are : • H20 – water vapor • CO2- Carbon Dioxide • CH4- Methane • NH4 – Nitrous Oxide or Ammonium • The most abundant gas in the earth’s atmosphere is water vapor . It trapped the IR radiation.
- 31. Man Made GreenhouseGases Along with natural processes, there are some man made greenhouse keep on increasing in the atmosphere. • Burning of fossil fuels , coal , oil , natural gas etc. • Deforestation • Generate lot of CO2 disturbs the balance of greenhouse gases in the atmosphere. • Use of aerosols , hairspray cans , fridges , plastics etc produce a group of highly dangerous gas called CFC which is so harmful for atmosphere. Even small amounts can trap a large quantites of heat , making the earth extremely hot. This is known as global warming.
- 32. Greenhouse Gas Naturalsources Man-made sources Carbon Dioxide Organic decay, Forest fires, Volcanoes Burning fossil fuels – car and factory emissions, electricity generation Methane Wetlands, Organic decay, Termites Natural gas & oil extraction, Biomass Burning, Rice cultivation, Cattle, Refuse landfills Nitrous Oxide Forests, Grasslands, Oceans, Soils, Soil cultivation; Fertilizers Biomass burning; Burning of fossil fuels Chlorofluorocarbons (CFCs) None Refrigerators; Aerosol spray propellants; Cleaning solvents
- 33. Green House Gases Burningof Oil, Petrol EngineCFC NOX +Co2 NO+Co2 NOx + Co2 CFC Some of the energy passes back into space Much of it remains trapped in the atmosphere by the greenhouse gases, causing our world to heat up NH4 Burning of Oil, Petrol Engine
- 34. Some experts believedthat increased levels of carbon dioxide in the atmosphere means more heat, thus, increasing temperature, and causing global warming. Global warming have been identified as one of the factors why polar ice caps is melting rapidly that will cause flooding to low- lying areas around the globe and therefore reducing biodiversity. This also feared as major factor of climate change experiencing in every corner of the world.
- 35. • Water levelrises Climate change • Causes skin diseases • Impediment of agricultural production
- 36. •Climatechanges •Changes in wildlifeadaptationsand cycles •Meltingof polar icecaps •Increase insea level •Flooding in coastal areas •Ocean Acidification
- 37. Prevention methods ofthe Green House Effect: 1. Use Green technology 2. reuse and recycle 3. Take steps at Home and Office 4. Learn Smarter car usage 5. Increase Social Awareness 6. Support ‘Emissions trading’ 7. Support ‘Kyoto protocol’
- 38. Prevention is betterthan cure. We should work towards for a greener future. Afterthought:
Editor's Notes
- #5 Picture of greenhouse
- #6 Picture of a greenhouse
- #8 Insert picture or diagram of greenhouse mechanisms
- #11 Diagram of a greenhouse effect in the atmosphere
- #13 Insert diagram of greenhouse in our atmosphere
- #16 Insert clip art of a person who is in cold weather
- #20 Insert earth’s and venus’ diagram of co2 concentration in the atmosphere
- #22 Insert a Diagram or gif of carbon dioxide concentration in the atmosphere
- #25 Any picture or diagram of a global warming
- #27 Insert a diagram of carbon dioxide molecules in the atmosphere
- #28 Insert a diagram of a methane or methane in the atmosphere
- #29 Diagram of an ozone layer or ozone molecules
- #30 Picture or molecules of a chloroflourocarbons and situations about it
- #35 Insert global warming effects