2013 UN DESD Student Summer Institute Ching Chung Hau Po Woon Secondary School
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2013 2013 UN UN DESD DESD Student Student Summer Summer Institute Institute Ching Chung Hau Po Woon Ching Chung Hau Po Woon Secondary School Secondary School
2013 UN DESD Student Summer Institute Ching Chung Hau Po Woon Secondary School
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
Slide 10
Sea level is rising Arctic sea ice is melting Arctic sea ice is
melting Seawater is becoming more acidic. Ecosystems are changing
Warmer temperatures affect human health
Slide 11
Polar Bears TurtlesTurtles WhalesWhales
Slide 12
PenguinsPenguins SealsSeals LobstersLobsters
Slide 13
Slide 14
In our daily life, we use a lot of energy. What are the energy
sources?
Slide 15
Slide 16
They are made from dead bodies of organisms from million years
ago. LIMITED They are LIMITED! POLLUTIONS They produce energy, also
POLLUTIONS!
Slide 17
sulphur dioxide carbon dioxide Pollutants like sulphur dioxide
and carbon dioxide are released in the burning of fuels. killing
living things killing living things in lakes and rivers
Slide 18
Slide 19
two Sustainable Energy has two key components: Renewable Energy
Energy Efficiency
Slide 20
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Slide 22
when you need it - Switch lighting on only when you need it.
daylight - Use daylight whenever possible. - Place your lighting
carefully where you need it. - Use dimmers where possible (except
for fluorescent lamps and compact fluorescent bulbs). non-opaque,
light-coloured lamp shades - Use non-opaque, light-coloured lamp
shades.
Slide 23
its Energy Efficiency Ratio - When buying an air-conditioner,
check its Energy Efficiency Ratio, with lower numbers denoting
better efficiency. unoccupied rooms - Close off areas that do not
require air-conditioning, and turn air- conditioners off in
unoccupied rooms. energy-efficient level - Set the temperature to
an energy-efficient level so that you will feel comfortable rather
than cold. Use fans - Use fans instead of air-conditioning whenever
possible.
Slide 24
public transport Use public transport (bus) in stead of cars
bicycle Ride bicycle to replace cars feet Walk by feet if your
destination is not far