2013 UN DESD Student Summer Institute Ching Chung Hau Po Woon Secondary School
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Transcript of 2013 UN DESD Student Summer Institute Ching Chung Hau Po Woon Secondary School
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20132013 UNUN DESDDESD StudentStudent SummerSummer InstituteInstituteChing Chung Hau Po Woon Secondary SchoolChing Chung Hau Po Woon Secondary School
20132013 UNUN DESDDESD StudentStudent SummerSummer InstituteInstituteChing Chung Hau Po Woon Secondary SchoolChing Chung Hau Po Woon Secondary School
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Do you know what problem I’m facing?
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• The global annual temperature is increasing in every increasing in every yearsyears.
• It keepskeeps risingrising in the future.
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• Temperature rise is related to the carbon carbon dioxide concentrationdioxide concentration!
Where do they come from?
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The Industrial Revolution Industrial Revolution is one of the main causes of climate change
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•Fossil fuel Combustion•Industrial processes•Deforestation•Transportation and even buildings
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Greenhouse GasesGreenhouse Gases• Water Vapour• Carbon dioxide (CO2)• Methane• Nitrous oxide• Chlorofluorocarbons (CFCs)
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sunlight heating up the Earth
some of the heat from the Sun escapes into space
carbon dioxide in the atmosphere traps some of the heat from the Sun
Enhanced greenhouse effect
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Polar BearsPolar BearsPolar BearsPolar Bears
TurtlesTurtlesTurtlesTurtles
WhalesWhalesWhalesWhales
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PenguinsPenguinsPenguinsPenguins
SealsSealsSealsSeals
LobstersLobstersLobstersLobsters
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In our daily life, we use a lot of energy.What are the What are the
energy energy sources?sources?
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• They are made from dead bodies of organisms from million years ago.
• They are LIMITEDLIMITED!• They produce energy, also POLLUTIONSPOLLUTIONS!
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Pollutants like sulphur sulphur dioxidedioxide and carbon carbon dioxide dioxide are released in the burning of fuels.
killing living things killing living things in lakes and rivers
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• Sustainable Energy has twotwo key components:
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- Switch lighting on only when you need itwhen you need it.
- Use daylight daylight whenever possible.
- Place your lighting carefully where you need it.
- Use dimmers where possible (except for fluorescent lamps and compact fluorescent bulbs).
- Use non-opaque, light-coloured lamp shadesnon-opaque, light-coloured lamp shades.
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- When buying an air-conditioner, check its Energy Efficiency its Energy Efficiency RatioRatio, with lower numbers denoting better efficiency.
- Close off areas that do not require air-conditioning, and turn air-conditioners off in unoccupied roomsunoccupied rooms.
- Set the temperature to an energy-efficient level energy-efficient level so that you will feel comfortable rather than cold.
- Use fans Use fans instead of air-conditioning whenever possible.
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• Use public transport public transport (bus) in stead of cars• Ride bicyclebicycle to replace cars• Walk by feetfeet if your destination is not far
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