Why Zero Carbon Britain? New norms – temperature, oceans acidifying, arctic ice New extremes – heatwaves, droughts, floods More to come – both expected, and unexpected

Where we’re heading today

Zero Carbon Britain

UK GHG emissions today

Net zero GHG emissions

ZCB shows that Without relying on future technology. UK greenhouse gas emissions can be reduced to net zero. Without relying on future technology. Without major impacts on quality of life.

ZCB shows that How do we do this? UK greenhouse gas emissions can be reduced to net zero. Without relying on future technology. Without major impacts on quality of life. How do we do this?

ZCB shows that And can we UK greenhouse gas emissions can be reduced to net zero. Without relying on future technology. Without major impacts on quality of life. ‘Keep the lights on’ with carbon neutral and renewable energy systems? Provide a healthy balanced diet lower in GHG emissions that has positive impact on land use? And can we

UK GHG emissions today

UK GHG emissions today

Energy in ZCB

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Can we “keep the lights on”? Key Question: Can we “keep the lights on”? 27

The ZCB Energy Model: Based on ten years of real-world hourly data 2002 - 2011 87,648 hours 28

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Land use in ZCB

UK GHG emissions today

UK GHG emissions today

Agricultural GHG emissions today ~ 10% of UK total

Land use today About 12% = forest (European average = 37%). Despite 85% imports. 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 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)).

Emissions Land use Nutrition Healthy, balanced diet. Low GHG emissions. Using only land we already use for food.

ZCB scenario Agricultural GHG emissions -73%. -50% waste. Eat only what we need. Product switch.

ZCB scenario Agricultural GHG emissions -73%. -50% waste. Eat only what we need. Product switch. 5-6 portions meat/dairy/eggs. 4 portions pulses/tofu. + Milk for tea/coffee.

ZCB scenario Agricultural GHG emissions -73%. -50% waste. Eat only what we need. Product switch. 5-6 portions meat/dairy/eggs. 4 portions pulses/tofu. + Milk for tea/coffee.

1. Food About a quarter of today’s grazing grassland is needed. All cropland still used, but allocated differently. Imports decreased from 42% to 17%.

2. Growing energy and fuel Total = 274 TWh/yr

3. Capturing carbon Safe, proven, well supported methods: Double forest area. Increased use of wood products. Restore 50% of peatlands. ~ 45MtCO2e/yr

Zero Carbon Britain

UK GHG emissions today

Net zero GHG emissions

ZCB shows that Net zero GHG emissions is achievable. We can ‘keep the lights on’ with carbon neutral and renewable energy systems. A healthier balanced diet is lower in GHG emissions and has positive impact on land.

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.

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.

www.cat.org.uk | @centre_alt_tech www.zerocarbonbritain.org | #ZCB 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