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www.zerocarbonbritain.org
Climate change

• New norms – temperatures increasing, arctic ice shrinking
• New extremes – heatwaves, droughts, floods
•...
Where we’re heading today
80%
reduction
by 2050

At least
net zero
ASAP!
A technically robust scenario in which the UK
has risen to this challenge.
Today: UK GHGs ~ 650MtCO2e
ZCB: net zero GHG emissions
ZCB shows that
UK emissions can be reduced to net zero.
Without nuclear power or gambling on
future technology.
Technicall...
We have to see the future like this
No continuous
‘business as
usual’ future is
available!
Benefits beyond carbon
• Potential for job creation ~1.5 million jobs.
• Help us adapt and increase our resilience to
clim...
Zero Carbon Britain
How do we get from this…
… to this?
Two big questions:
1. Can we ‘keep the lights on’ with carbon
neutral and renewable energy systems?
2. Can we provide a he...
Energy in ZCB
UK GHG emissions today
The majority (though not all) of
our emissions come from energy
From:
From:
Today
Supply

Demand
Question 1:
Can we ‘keep the
lights on’?
The ZCB hourly
energy model:
Based on ten
years of
real-world
hourly data
2002 - 2011
87,648 hours
ZCB electricity supply
ZCB electricity demand
Land use in ZCB
UK GHG emissions today
UK GHG emissions so far…
UK GHG emissions so far…
Agricultural GHG emissions today

~ 10%
of UK
emissions
Land use today

• 65-70% = food production/agriculture
• Despite 42% imports.
• 85% of agricultural land = livestock.
Current average UK diet
64% of adults overweight/obese
(Bates et al, 2011).
71% of deaths in 2010 from dietrelated disease...
Question 2:
Can we provide a
healthy and
balanced diet that
reduces greenhouse
gas emissions?
The ZCB
food and
diets model
For over 60
different
foods:
• Emissions
• Land use
• Nutrition
The ZCB
food and
diets model
• Healthy,
balanced diet.
• Low GHG
emissions.
• Using only land
we already use
for food.
ZCB scenario
• Nitrogen inhibitors.
• -50% waste.
• Eat only what we need.
• Product switch.
ZCB scenario
• Nitrogen inhibitors.
• -50% waste.
• Eat only what we need.
• Product switch.
ZCB scenario
• Nitrogen inhibitors.
• -50% waste.
• Eat only what we need.
• Product switch.
• 5-6 portions
meat/dairy/egg...
ZCB scenario
Agricultural GHG
emissions -73%.
• About a quarter of
today’s grazing
grassland is needed.
• All cropland sti...
Growing energy and fuel
Capturing carbon
Safe, proven,
lasting methods:
• Restore 50%
of peatlands.
• Double forest area.
• Increased use
of UK wo...
Zero Carbon Britain
UK GHG emissions today
Net zero GHG emissions
ZCB shows that
UK emissions can be reduced to net zero.
We can provide a reliable energy supply to
‘keep the lights on.’
•...
ZCB shows that
UK emissions can be reduced to net zero.
We can provide a healthy, balanced diet that
is low in GHG emissio...
Benefits beyond carbon
• Potential for job creation ~1.5 million jobs.
• Help us adapt and increase our resilience to
clim...
We have the technology to power ourselves
with 100% renewable energy, to feed ourselves
sustainably and to leave a safe an...
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)
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Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)

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Using only current technology and acting in line with current climate science, we can reduce our greenhouse gas emissions to net zero whilst maintaining a modern standard
of living.

We can provide a reliable energy supply for the UK with renewable energy sources and flexible carbon neutral back up. Without fossil fuels, nuclear power, or gambling on the promise of future technology.

We can grow the vast majority of the food we need for a healthy, low carbon diet, and manage our land to capture carbon, nurture biodiversity and increase the health and resilience of our ecosystems.

We can create 1.5 million jobs, improve our wellbeing, and help ensure the future we leave for our children and generations to come is safe and sustainable.

We have everything we need to create a positive future.

Download the full report, 'Zero Carbon Britain: Rethinking the Future' for free (www.zerocarbonbritain.org) to find out how, or buy a copy online from the Centre for Alternative Technology Eco Store (www.cat.org.uk).

Published in: Technology
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Zero Carbon Britain: Rethinking the Future (Centre for Alternative Technology, 2013)

  1. 1. www.zerocarbonbritain.org
  2. 2. Climate change • New norms – temperatures increasing, arctic ice shrinking • New extremes – heatwaves, droughts, floods • More to come – both expected, and unexpected
  3. 3. Where we’re heading today
  4. 4. 80% reduction by 2050 At least net zero ASAP!
  5. 5. A technically robust scenario in which the UK has risen to this challenge.
  6. 6. Today: UK GHGs ~ 650MtCO2e
  7. 7. ZCB: net zero GHG emissions
  8. 8. ZCB shows that UK emissions can be reduced to net zero. Without nuclear power or gambling on future technology. Technically, we could do it now! Without major impacts on quality of life. (In fact, we think this future is better!)
  9. 9. We have to see the future like this No continuous ‘business as usual’ future is available!
  10. 10. Benefits beyond carbon • Potential for job creation ~1.5 million jobs. • Help us adapt and increase our resilience to climate changes. • Better outlook for biodiversity (and other environmental problems). • Improve our health and wellbeing.
  11. 11. Zero Carbon Britain
  12. 12. How do we get from this…
  13. 13. … to this?
  14. 14. Two big questions: 1. Can we ‘keep the lights on’ with carbon neutral and renewable energy systems? 2. Can we provide a healthy balanced diet for the UK that is lower in GHG emissions and has positive impact on land use?
  15. 15. Energy in ZCB
  16. 16. UK GHG emissions today
  17. 17. The majority (though not all) of our emissions come from energy
  18. 18. From:
  19. 19. From:
  20. 20. Today
  21. 21. Supply Demand
  22. 22. Question 1: Can we ‘keep the lights on’?
  23. 23. The ZCB hourly energy model: Based on ten years of real-world hourly data 2002 - 2011 87,648 hours
  24. 24. ZCB electricity supply
  25. 25. ZCB electricity demand
  26. 26. Land use in ZCB
  27. 27. UK GHG emissions today
  28. 28. UK GHG emissions so far…
  29. 29. UK GHG emissions so far…
  30. 30. Agricultural GHG emissions today ~ 10% of UK emissions
  31. 31. Land use today • 65-70% = food production/agriculture • Despite 42% imports. • 85% of agricultural land = livestock.
  32. 32. Current average UK diet 64% of adults overweight/obese (Bates et al, 2011). 71% of deaths in 2010 from dietrelated 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)).
  33. 33. Question 2: Can we provide a healthy and balanced diet that reduces greenhouse gas emissions?
  34. 34. The ZCB food and diets model For over 60 different foods: • Emissions • Land use • Nutrition
  35. 35. The ZCB food and diets model • Healthy, balanced diet. • Low GHG emissions. • Using only land we already use for food.
  36. 36. ZCB scenario • Nitrogen inhibitors. • -50% waste. • Eat only what we need. • Product switch.
  37. 37. ZCB scenario • Nitrogen inhibitors. • -50% waste. • Eat only what we need. • Product switch.
  38. 38. ZCB scenario • Nitrogen inhibitors. • -50% waste. • Eat only what we need. • Product switch. • 5-6 portions meat/dairy/eggs. • 4 portions ‘alternatives’. • + Milk for tea/coffee.
  39. 39. ZCB scenario Agricultural GHG emissions -73%. • About a quarter of today’s grazing grassland is needed. • All cropland still used, but allocated differently. • Imports decreased from 42% to 17%.
  40. 40. Growing energy and fuel
  41. 41. Capturing carbon Safe, proven, lasting methods: • Restore 50% of peatlands. • Double forest area. • Increased use of UK wood products.
  42. 42. Zero Carbon Britain
  43. 43. UK GHG emissions today
  44. 44. Net zero GHG emissions
  45. 45. ZCB shows that UK emissions can be reduced to net zero. We can provide a reliable energy supply to ‘keep the lights on.’ • 100% renewable/carbon-neutral. • No nuclear. • No gambling on future technology.
  46. 46. ZCB shows that UK emissions can be reduced to net zero. We can provide a healthy, balanced diet that is low in GHG emissions. • Better than today’s diet. • Has positive impact on land in the UK and abroad.
  47. 47. Benefits beyond carbon • Potential for job creation ~1.5 million jobs. • Help us adapt and increase our resilience to climate changes. • Better outlook for biodiversity. • Improve our health and wellbeing. A positive future.
  48. 48. We have the technology to power ourselves with 100% renewable energy, to feed ourselves sustainably and to leave a safe and habitable climate for our children and future generations. www.cat.org.uk | @centre_alt_tech www.zerocarbonbritain.org | #ZCB

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