notes: ‘science teachers for climate awareness’
DESCRIPTION
NOTES: ‘Science Teachers for Climate Awareness’. This ppt is designed for use of science teachers in talking about low emission energy resources and other greenhouse mitigation methods. We suggest adapting this ppt to your own liking or combining with others. - PowerPoint PPT PresentationTRANSCRIPT
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NOTES: ‘Science Teachers for Climate Awareness’ This ppt is designed for use of science teachers in talking about low emission
energy resources and other greenhouse mitigation methods. We suggest adapting this ppt to your own liking or combining with others. For suggestions for improvements please contact KB at PLEASE NOTE: This will never be a ‘complete’ presentation but is provided for ideas
and feedback. It will be updated as time allows! Be sure to look at the ‘notes’ pages below for suggestions for how to use and more
detail.
This AIP web version 21 Sep 2010
THIS IS PART 2 OF THIS PRESENTATION – PART 1 CONTAINS THE MORE IMPORTANT SECTIONS. LAST SLIDE OF PART 1 FOLLOWS:
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b e y o n d Z E R O e m i s s i o n s . o r g
1 mirror
OR
20 tons of coal
OUR CHOICE
Renewable choiceRenewable choice
(Over lifetime of mirror)
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Climate Change:Climate Change:
We CAN We CAN reducereduce the CO the CO22 and other and other greenhouse gases in our atmospheregreenhouse gases in our atmosphereto safer levelsto safer levels
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The Solutions! The Australian scene: UNSW PV
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The Solutions! – The future?
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The Solutions! – The future?“It is a remarkable fact that, in maintaining our standard of living, each Australian produces enoughcarbon dioxide (CO2) to replace the column of atmosphere above one square metre of land every year.”
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The Solutions!… achieving the transition to a low carbon
sustainable economy will require a massive mobilisation of skills and training – both to equip new workers and to enable appropriate changes in practices by the three million workers already employed in these key sectors influencing our environmental footprint. Current approaches do not appear sufficient for meeting these challenges.
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The Solutions!We can become more energy efficient and
at the same time grow our economy, as demonstrated by the example of Sweden. Since 1990, the economy of Sweden has grown by 50% while reducing its greenhouse emissions by 10%.
To achieve a similar outcome, Australia must build infrastructure to reduce our greenhouse gas footprint, cut our dependence on liquid fuels, and enable the transition to a low-carbon economy.
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The Solutions! Fossil fuels
Cutting car use has to be a priority
2000 2020 ABS
Transportenergy
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The Solutions! Reduce energy use
Better forms of transport – maybe these?
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The Solutions! Reduce energy use
Better forms of transport – definitely these
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The Solutions! Typical bike lane Melbourne
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The Solutions! Typical bike lane Copenhagen
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The Solutions!
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We are way behind in bicycle use
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Oberstdorf – Bavaria
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Copenhagen free “city bikes”
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Melbourne non-free “city bikes”
But But where are where are the bike the bike paths?paths?
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The Solutions! Reduce energy use
These are a problem!
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The Solutions!
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The Solutions! Maybe this is one solution
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The Solutions! This could be another
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The Solutions! This solution is a long
way off! (But it did fly for over
24 hours!)
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The Solutions! Reduce energy
use This could be fun.
Maybe we need to be a bit more relaxed about getting places!
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The Solutions! Lower CO2 options
Sequestration of CO2 from power stations - ? More efficient coal stations Combined cycle gas generators
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The Solutions! Lower CO2 options
Ceramic fuel cells combined electricity and heat unit
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The Solutions! Lower CO2 options
Nuclear ?
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The Solutions! Nuclear? A difficult question for environmentalists! NO!
ACF, Greenpeace, FoE, etc. Mark Diesendorf
YES! James Hansen Barry Brooke Sweden reversed its nuclear phase out
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The Solutions! But there are two different questions! Nuclear power for Australia?
We have plenty of other renewable resources. They be developed more quickly than nuclear. Nuclear would cost as much or more than wind.
Nuclear power for other countries? Most countries don’t have our renewable options. Should Australia export uranium? Should we process and recycle nuclear fuel? Should we bury waste?
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The Solutions! Australia – land of Sun, Wind, Australia – land of Sun, Wind,
Ocean, GeothermalOcean, Geothermal About About 33 people per sq km people per sq km
Japan – Not much of any of those!Japan – Not much of any of those! About About 340340 people per sq km people per sq km
Japan to same scale
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The Solutions! Australia – Vastly more solar
and wind Japan – Must import energy in
some form Coal? Oil? Gas? Hydrogen? Nuclear? Solar ~280 W/mSolar ~280 W/m22
JapanJapanSolar <200 W/mSolar <200 W/m22
WIND (potential)
1 PWh
PWh
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The Solutions! Not surprisingly...
Nuclear 23.3% (2007) Fossil fuels 67%
Total electricity ~4000 PJ/yr (Oz 900 PJ/yr)
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The Solutions! Many countries are using nuclear power for a lot of
their electricity generation
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The Solutions! Australia
has large amounts of uranium
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The Solutions! Highest reserves, but less production than Canada
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The Solutions!
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The Solutions! Sustainable options
60 kilowatt (10 years ago) Yambuk 2006 1.3 megawatt 6 MW and increasing
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The Solutions! Sustainable options
We make per day about:
6 – 12 kWh
Feed in to grid about
3 – 6 kWh
Draw from grid about
2 – 4 kWh
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The Solutions! Sustainable options
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The Solutions! Sustainable options
Gas used for hot water October to April:
NONE at allNONE at all
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The Solutions! Sustainable options
Where are the solar collectors?
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The Solutions! Sustainable options: This is in sunny Germany!
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The Solutions! Sustainable options
Another sort of ‘power tower’. Hot air rising drives turbines in the tower.
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The Solutions! Sustainable
options Geothermal
– ‘hot rocks’ Potentially
very large resources
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The Solutions! Sustainable
options Geothermal –
‘hot rocks’ A number of
problems yet to be overcome however!
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The Solutions! Sustainable
options Geothermal
– ‘hot rocks’ Potentially
very large resources
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Pulling carbon out of the air
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Pulling carbon out of the air
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This is not the end! There are many more sustainable options and the list is
growing every day. We must go beyond the so called ‘debate’ and move
toward a safe future.
This presentation is in a continuing state of development. Please let us know of suggested improvements, additions!
Go to www.vicphysics.org to find the latest version.