Good Science Victorian Curriculum Year 7
Digital sample of Matilda's newest publication, Good Science Victorian Curriculum Year, authored by Emma Craven and Aaron Elias. For more information visit www.matildaeducation.com.au or email Katrina Tucker, katrinatucker@matildaed.com.au
Digital sample of Matilda's newest publication, Good Science Victorian Curriculum Year, authored by Emma Craven and Aaron Elias. For more information visit www.matildaeducation.com.au or email Katrina Tucker, katrinatucker@matildaed.com.au
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CHAPTER 7: EARTH’S RESOURCES<br />
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4<br />
Ethical considerations for resource use<br />
Obtaining a resource may change, pollute or destroy native habitats<br />
or reduce the biodiversity of an area. Sometimes it is the use of the<br />
resource that can be damaging to the environment. The burning of<br />
fossil fuels results in the release of carbon dioxide into the atmosphere<br />
at levels well above what would naturally occur. Carbon dioxide traps<br />
heat in the atmosphere that would normally escape into space. This<br />
has caused average global temperatures to rise and is contributing to<br />
climate change. If we are to limit the amount of carbon dioxide being<br />
emitted, we need to use alternatives to fossil fuels to produce energy.<br />
What is an example of an ethical consideration?<br />
Ethics involves considering different opinions<br />
Before a resource is extracted and used, information and opinions are<br />
gathered about the resource and the local environment so that choices<br />
and decisions can be made.<br />
There are always groups of people with different opinions and this can<br />
make the final decision difficult to make. Coal is one of the resources<br />
that is frequently debated in Australia. Different groups will be affected<br />
in different ways depending on the choices that are made.<br />
Table 7.2 Different impacts and points of view about mining and<br />
using coal<br />
Group<br />
Mining company<br />
Energy company<br />
Coal industry workers<br />
Environmentally<br />
conscious people<br />
Renewable energy<br />
companies<br />
People living near<br />
mines and power<br />
plants<br />
Scientists<br />
Impact and point of view<br />
Wants to extract as much coal as possible, spending<br />
as little as possible to maximise profits<br />
Wants to utilise a cheap fuel source (such as coal)<br />
to meet electricity demands<br />
Want the industry to continue to provide them<br />
with work<br />
Want the mining and burning of coal to stop so that<br />
carbon dioxide emissions are greatly reduced and<br />
ecosystems are protected<br />
Want governments to support renewable energy<br />
technologies so that renewable energy becomes the<br />
primary source of electricity as well as a source of<br />
employment<br />
May be concerned by damage to the local<br />
environment and that pollution could be harming<br />
their health<br />
Have undertaken many studies showing that the<br />
burning of fossil fuels such as coal is causing<br />
climate change<br />
Why can making decisions about using resources be difficult?<br />
CHECKPOINT 7.6<br />
1 Describe how obtaining and<br />
using a resource can be of<br />
benefit to society.<br />
2 Describe how the natural<br />
environment can be affected<br />
by obtaining or using resources.<br />
3 What gas is released into the<br />
atmosphere when a fossil<br />
fuel is burnt? Describe the<br />
environmental impact of<br />
this gas.<br />
4 Outline some ways that mining<br />
impacts on:<br />
a the environment<br />
b society and people<br />
c industry and the economy.<br />
5 Brainstorm some ways that<br />
mining companies could<br />
reduce their impact on the<br />
environment.<br />
6 Stopping coal mining in<br />
Australia would reduce a<br />
significant portion of income<br />
coming into the country’s<br />
economy, but would stop<br />
considerable environmental<br />
damage from the mining<br />
and use of the coal. Does<br />
the benefit of conserving the<br />
environment outweigh the cost<br />
to the economy? Use evidence<br />
to support your response.<br />
INQUIRY<br />
7 Research your local energy<br />
supplier. Find out where<br />
your energy is sourced from.<br />
What percentage is renewable<br />
and what percentage is<br />
non‐renewable? Discuss some<br />
ethical considerations (what is<br />
right and wrong) about how<br />
your power is generated.<br />
SUCCESS CRITERIA<br />
I can describe some ethical<br />
considerations of obtaining<br />
and using resources.<br />
I can describe some<br />
different points of view<br />
people may have on the use<br />
of non-renewable resources<br />
in Australia.<br />
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