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When you run the hot water tap, turn on
your central heating, or travel somewhere in a car, train,
bus or aeroplane you are using fossil fuels. The energy we
use comes from somewhere. Even the electricity that you are
using to run your computer!
Power is measured in watts, or kilowatts
(which is a 1,000 watts).
1 kilowatt-hour (kWh) is the energy of 1,000 watts working
for an hour. So, if you used a 40 watt bulb for 5 hours, you
would have used 200 watts of power (or .2 kWh of energy).
Virtually every household appliance requires
energy in some form. Watching the TV, using a hairdryer, microwaving
a meal these all need electricity to work, and electricity
comes from power plants that mostly use coal and gas. When
the fossils are burnt they produce greenhouse gases that contribute
to global
warming.
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Launch
it ...
Can you can create the ultimate Power
House? |
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Its clear that we cannot avoid using
electricity altogether, but we can reduce the amount we use
easily if we are careful. Can you think of any ways you can
reduce the amount of energy you use? Have a look at some suggestions:
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You can save electricity whenever
possible. We can all make sure we dont waste energy
by making sure we dont leave hot taps running, not
having the heating turned up too high and generally by
not using more energy than we need to in the home. |
- You can decrease the amount of petrol
we use by using public transport instead of going by car:
or better still, travel on foot or by bicycle if possible;
this uses no fossil fuels at all!
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You could help by planting a tree!
Trees help to reduce the greenhouse gases by absorbing
carbon dioxide. And they make the world look a better
place too! |
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You can recycle things that are
from a non-renewable source;
that means things like tin cans, bottles, and paper. When
you recycle you are helping to save fossil fuels, trees,
and basic elements like aluminium. You are also reducing
the production of such items, and thereby reducing the
amount of fuel used to produce them. You can also buy
recycled products. Look for a symbol with three arrows
in a circle: this means the item is recycled. Recycled
items require less energy to produce, so are better for
the environment. |
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We can actually use solar or wind power to produce our energy: many power stations are
giving people the option of using this as an alternative
to the energy from fossil fuels. Why not try to find out,
or ask your parents if your electricity can be from a
more environmentally friendly source? |
- You can also help if you spread the word:
talking to your friends and family will make other people
aware of the issues and the more people who know about it,
the more effect we can have on reducing the effects of global
warming!
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Launch
it ...
Find out more about energy in the world in the Energy
Explorer. |
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Discuss it ...
What could your home, school or
college do to use less energy? |
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Can you think of any other
ways of producing energy without using fossil fuels? How
about wind and solar power? There are even ways of building
houses that dont need central heating, which can
save a huge amount of energy. |
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