NOTES: ‘Science Teachers for Climate Awareness’

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:

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)

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

The Solutions! The Australian scene: UNSW PV

The Solutions! – The future?

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.”

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.

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.

The Solutions! Fossil fuels

Cutting car use has to be a priority

2000 2020 ABS

Transportenergy

The Solutions! Reduce energy use

Better forms of transport – maybe these?


Better forms of transport – definitely these

The Solutions! Typical bike lane Melbourne

The Solutions! Typical bike lane Copenhagen

The Solutions!

We are way behind in bicycle use

Oberstdorf – Bavaria

Copenhagen free “city bikes”

Melbourne non-free “city bikes”

But But where are where are the bike the bike paths?paths?


These are a problem!

The Solutions!

The Solutions! Maybe this is one solution

The Solutions! This could be another

The Solutions! This solution is a long

way off! (But it did fly for over

24 hours!)

The Solutions! Reduce energy

use This could be fun.

Maybe we need to be a bit more relaxed about getting places!

The Solutions! Lower CO2 options

Sequestration of CO2 from power stations - ? More efficient coal stations Combined cycle gas generators


Ceramic fuel cells combined electricity and heat unit


Nuclear ?

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

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?

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

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

The Solutions! Not surprisingly...

Nuclear 23.3% (2007) Fossil fuels 67%

Total electricity ~4000 PJ/yr (Oz 900 PJ/yr)

The Solutions! Many countries are using nuclear power for a lot of

their electricity generation

The Solutions! Australia

has large amounts of uranium

The Solutions! Highest reserves, but less production than Canada

The Solutions!

The Solutions! Sustainable options

60 kilowatt (10 years ago) Yambuk 2006 1.3 megawatt 6 MW and increasing


We make per day about:

6 – 12 kWh

Feed in to grid about

3 – 6 kWh

Draw from grid about

2 – 4 kWh



Gas used for hot water October to April:

NONE at allNONE at all


Where are the solar collectors?

The Solutions! Sustainable options: This is in sunny Germany!


Another sort of ‘power tower’. Hot air rising drives turbines in the tower.

The Solutions! Sustainable

options Geothermal

– ‘hot rocks’ Potentially

very large resources


options Geothermal –

‘hot rocks’ A number of

problems yet to be overcome however!


options Geothermal

– ‘hot rocks’ Potentially

very large resources

Pulling carbon out of the air

Pulling carbon out of the air

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.

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NOTES: ‘Science Teachers for Climate Awareness’