zero carbon britain event (london 9th april 2014): can renewables keep the lights on?
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(1973)
(2014)
“Voices from a disused quarry”
www.publications.cat.org.uk
www.cat.org.uk
www.zerocarbonbritain.org
Can we ‘keep the lights on’ with a 100% renewable and carbon neutral energy system?
Can we provide a healthy low-carbon diet for the UK population?
New research
A technically robust scenario in which the UK has risen to the challenge of climate change.
Net zero across all greenhouse gas emissions (not just energy), using technology we have now.
From this …
… to this
Without major impacts on quality of life (in fact, we think this future looks pretty good)
We have to see the future like this
No ‘business as usual’ future
is available.
“Need an explicit recognition that it is ‘large and difficult’, not ‘simple and painless’”
– Stuart Capstick
So, how does this work?
Energy
From:
From:
Today
Supply Demand
Can we “keep the lights on”?
The ZCB Energy Model:
Based on ten years of real-world hourly data
2002 - 201187,648 hours
ZCB electricity supply
ZCB electricity demand
Land use
© A
ll rig
hts
rese
rved
by
Cen
tre
for
Alte
rnat
ive
Tec
hnol
ogy
Tod
ay
ZC
B
Biomass
70% of our land
(85% livestock)
55% of our food
Tod
ay
ZC
B
Biomass
Land use in ZCB
There is enough space for:
• Food
• Biomass
• Natural spaces
Food + diets model: nutrition, emissions, land
Land use GHG emissions today
~ 10% of UK total
Agricultural GHG emissions today
~ 10% of UK total
Current average UK diet 64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from diet- related disease (WHO, 2013).
Current average UK diet 64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from diet- related disease (WHO, 2013).
• Too much food.
Current average UK diet 64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from diet- related disease (WHO, 2013).
• Too much food.
• An unhealthy balance.
Current average UK diet 64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from diet- related disease (WHO, 2013).
• Too much food.
• An unhealthy balance.
• Too much HFSS and high protein foods.
• Too little fruit, vegetables and cereals.
Current average UK diet 64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from diet- related disease (WHO, 2013).
• Too much food.
• An unhealthy balance.
• Too much HFSS and high protein foods.
• Too little fruit, vegetables and cereals.
• Waste (30% in Europe (FAO, 2011)).
Food + diets model: nutrition, emissions, land
Change our diets
Change our diets• Switch high protein foods
5-6 portions meat/dairy/eggs.
4 portions ‘alternatives’ (beans, pulses etc).
+ Milk for tea/coffee.
Change our diets
+ halve food waste
+ improve agricultural practices
= Emissions - 75%
85% of our food
55% of our food
Grow all the biomass need
Capture remaining carbon
Safe, proven, long- lasting methods:
• Restore 50% of peatlands
• Double forest area
• More use of UK wood products
This is how it works.
Net zero GHG emissions is possible.
• Using technology available now.
• Without major impacts on quality of life.
We can provide a reliable energy supply.• 100% renewable/carbon-neutral.
• No nuclear, no fossil fuels.
• Using technology available today.
ZCB also shows that
We can provide a reliable energy supply.• 100% renewable/carbon-neutral.
• No nuclear, no fossil fuels.
• Using technology available today.
We can provide a healthy sustainable diet, biomass and capture carbon using UK land.
ZCB also shows that
Other benefits:
• 1.5 million jobs
• Increased resilience
• Biodiversity
• Improved wellbeing
© All rights reserved by Centre for Alternative Technology
Other benefits:
• 1.5 million jobs
• Increased resilience
• Biodiversity
• Improved wellbeing
A positive future.
© All rights reserved by Centre for Alternative Technology
Zero Carbon Britain
To demonstrate that integrated and technically feasible solutions do exist.
To demonstrate that integrated and technically feasible solutions do exist.
To support and inspire the action needed to achieve a positive zero carbon future.
www.zerocarbonbritain.org
www.zerocarbonbritain.org
18th – 20th July
www.zerocarbonbritain.org
How can ZCB be most useful?
How can ZCB be most useful?
• Helps us see the scale of our actions.
How can ZCB be most useful?
• Helps us see the scale of our actions.
• Be more radical in what we ask for.
How can ZCB be most useful?
• Helps us see the scale of our actions.
• Be more radical in what we ask for.
• As a tool to help forge political will.
How can ZCB be most useful?
• Helps us see the scale of our actions.
• Be more radical in what we ask for.
• As a tool to help forge political will.
• Helps local groups fit into a bigger picture.
How can ZCB be most useful?
• Helps us see the scale of our actions.
• Be more radical in what we ask for.
• As a tool to help forge political will.
• Helps local groups fit into a bigger picture.
• Helps us imagine an alternative future.
‘What we need is credible optimism … the real problem is that we can’t imagine the alternative’ – Naomi Klein
www.cat.org.uk | @centre_alt_tech www.zerocarbonbritain.org | #ZCB
We have the technology to power the UK with 100% renewable energy, to feed ourselves
sustainably and to leave a safe and habitable climate for our children and future generations.
Have you learned something new this
evening?
Speak to someone with the same coloured blob
How are you feeling right now?
(bit of emotion please…)
Speak to someone with a different coloured blob
Is there a particular fact or statistic that’s going to
stick in your head?
Blue blobs speak to green blobs
Black blobs speak to red blobs
Is there anything you’re thinking
about differently as a result of the
evening? Blue blobs speak to red blobs
Black blobs speak to green blobs
Who do you think might find ZCB useful – will you
tell them?
Speak to someone with the same coloured blob
Will anything you’ve learned tonight
change your approach to
sustainability or environmental
action? Speak to someone with a different
coloured blob
What do you think is the most useful thing to do with
this research now?
Speak to someone with a different coloured blob
Don’t forget to add your thoughts to the comment and feedback cards!
Thankyou!
(now just have fun)
Speak to whoever you want!
www.cat.org.uk | @centre_alt_tech www.zerocarbonbritain.org | #ZCB
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