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Chatham house quiz. If Paris delivers a genuine global commitment …. Is it realistic to reduce emissions in line with a “likely” chance of <2°C? What’s the earliest date non-Annex 1 nations could peak emissions? What’s the earliest date global emissions could peak?
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If Paris delivers a genuine global commitment … • Is it realistic to reduce emissions in line with a “likely” chance of <2°C? • What’s the earliest date non-Annex 1 nations could peak emissions? • What’s the earliest date global emissions could peak? • What is the maximum annual reduction in carbon intensity • i.e. the reduction in carbon emissions per unit of GDP?
Numerical context … • IPCC “likely” 2°C budget range is 630-1180GtCO2 for 2011-2100 • Emissions from 2011 to the end of 2014 will be ~144GtCO2 • Total CO2 from deforestation (with optimistic policy) ~ 130-200GtCO2 • Emission growth 2000-2012 was just over 3% p.a.including an economic slowdown only second to the Great Depression • Paris 2015 mitigation focus is on post 2020 at best • By end of 2020, remaining 2°C budget range will be ~100 to 600GtCO2 • That is ~ 2 to 12 years at 2020 emission levels
… and with even weak equity criteria, the implications for Annex 1 nations will be much more challenging still
The Ostrich or the Phoenix? ... cognitive dissonance or creativity in a changing climate web: kevinanderson.info twitter: @KevinClimate Kevin Anderson University of Manchester Sept 2014
My headline conclusion: Avoiding “dangerous climate change” (stabilisation at 2°C) remains a feasible goal of the international community just … with economic (oikonimia), but not financial (chrematisitc), benefits
Fredag in Stockholm: IPCC science report released • Offered neither surprise nor solace to our fossil-fuel hungry world • The science message for policy-makers, business leaders and civil society has changed very little during the last twenty years • Small adjustments and refinements have occurred • – but this is a mature science
So what has changed? • An additional 200 billion tonnes of CO2 pumped into the atmosphere since last report (AR4 2007) • Annual emissions ~65% higher than at time of the first report in 1990 • Atmospheric CO2 levels higher than during past 800 thousand years
Yet we repeatedly recommit to: … make our fair contribution to… “To hold the increase in global temperature below 2 degrees Celsius, and take action to meet this objective consistent with scienceand on the basis of equity” Copenhagen Accord, 2009
… to meet this objective, we need radical and immediate reductions in energy demand But surely… we can deliver 2°C mitigation through low-carbon energy supply? … in 2014, it’s all about timing! • reduction targets for 2050 dangerously misguide policy makers • temperature is about cumulative emissions / carbon budgets • for Annex 1 nations • there is insufficient carbon space for gas as a transition fuel • CCS emissions are too high (LCA levels of >80gCO2/kWh)
UN Climate change panel established RIO Earth Summit
Royal Commission (60% by 2050) UN Climate change panel established RIO Earth Summit
Royal Commission (60% by 2050) UN Climate change panel established Copenhagen Accord RIO Earth Summit
… despite economic downturn, emissionscontinue to rise 5% in 2010; 2-3% p.a. since. Royal Commission (60% by 2050) UN Climate change panel established Copenhagen Accord Rio + 20 RIO Earth Summit
… so what of future emissions? Royal Commission (60% by 2050) UN Climate change panel established Copenhagen Accord Rio + 20 RIO Earth Summit
Energy system design lives (lock-in) • Power stations • Large scale infrastructures • Built environment • Aircraft & ships 30-100 years
Extrapolation of 3.5%, 3, 2, 1% … (i.e. globalisation + unconventional fossil fuel & late transition to low carbon energy)
c.f. highest IPCC’s emission scenarios RCP8.5is 2% p.a. growth from 2020 (i.e. 1.5% below pre-recession rate)
… but are such rising emissions realistic? • consider the UK (a leading nation on CC?) • Tax breaks for shale gas development • Chancellor proposes 30+ new gas powerstations • Highest investment ever in North Sea oil • Reopening of Scottish coal mines • Expanding aviation & more ports • Emission standards for cars watered down • Supporting Arctic exploration for hydrocarbons • Opened a consulate in Alberta (tar sands)
i.e. we’re set to emit … between 2000 to 2050 >2500GtCO2 and for 2000 to 2100 ~5000+GtCO2
Yet for a “likely” chance of <2°Cwe can emit only ~600 to 1200GtCO2 (AR5)
So recent history supports the IEA view … that the CO2trend “is perfectly in line with a temperature increase of 6 degrees Celsius, which would have devastating consequences for the planet.” FatihBirol - IEA chief economist
Optimistically using the higher of the IPCC’s budget range … 4°C to 6°C “likely” chance of 2°C
Too early for new low carbon supply Reduce Demand Supply & demand
Reduce Demand Supply & demand
“To hold the increase in global temperature below 2 degrees Celsius, and take action to meet this objective consistent with science and on the basis of equity” Reduce Demand Supply & demand
Assuming poorer (non-Annex 1) nations: 1. Collectively peak their emissions by 2025 2. Reduce thereafter at 6-8% p.a.
… then, for 2°C, wealthy (Annex 1) nations require: At least 10% reduction in emissions year on year, i.e. 40% reduction by ~2018 (c.f. 1990) 70% ~2024 90+% ~2030 i.e. RADICAL EMISSION REDUCTIONS
Why does orthodox analysis give such different results? • Probability of exceeding 2°C is much higher (60-80%) • – i.e. bigger carbon budgets (~2x) • Inequitable apportionment of global emissions to Annex 1 • Machiavellianpeaks (2010-2016, & before 2020 for China) • Emission reduction rate universally dictated by economists • Geoengineeringis widespread in low carbon scenarios
EU Why aren’t scientists whistle-blowing these fudges • We are collectively applying Thomas Moore’s maxim • "Qui tacetconsentiret": Silence gives consent • 2. We are culpable as a research community of a‘conspiracy of silence’,– we don’t agree with what’s going on but don’t want to bite the hand that feeds us • 3. We areignorant of some of the fundamental underpinnings for our research • 4. We don’t care – and anyway flagging up these concerns would likely raise difficult questions about our own lifestyles
If 2°C looks too difficult … what about a 4°C future? • (i.e. a larger carbon budget and lower rates of mitigation)
Global impacts: 4°C +8°C Europe Hottest days +6°C China +10-12°C N. America … add to heat-wave temps’
Global impacts: 4°C Sea level rise 80cm rise, higher in low latitudes
Global impacts: 4°C Food crops … up to 40% reduction in maize, wheat & rice yields in low latitudes.
There is a widespread view that 4°C is… • Incompatible with an organised global community • Beyond ‘adaptation’ • Devastating to eco-systems • Unlikely to be stable (‘tipping points) … consequently … 4°C should be avoided at ‘all’ costs
Returning to 2°C … is it still a viable goal?
Hypothesis: yes … just Equity a small group to make radical & early reductions Technology demand side can deliver early & large reductions Growththere are alternative measures of a good life
Equity: Pareto’s 80:20 rule 80% of something relates to … 20% of those involved ~80% of emissions from ~20% of population run this 3 times ~50% of emissions from ~1% of population Or more realistically: ~40% to 60% from ~1% to 5%
who are the high-emitters? • Climate scientists • OECD (& other) academics (GPs … etc?) • Anyone who takes an annual flight or two … 2°C mitigation is principally a short-term challenge; i.e. really now to 2025 - so is mostly about the few not the many … it is a consumption and not a population issue!
Technology • A++ rated fridge uses ~85% less energy than an A rated • Efficient IC cars 85-100gCO2/km; UK fleet 168gCO2/km (i.e. efficient petrol/diesel car uses 50% less fuel than the average) • Appliances typically have under 8 year replacement cycles
Growth: a misguided proxy? • Stern, CCC & others: ‘Mitigation of over 4% p.a. incompatible with economic growth’ • but the economist’s economy has stalled! • self-regulated markets have failed to self regulate • £350 billion of QE has been squandered (c.f. retrofit) We have an unprecedented opportunity to think differently
Growth subsumes real social goods, including: • Welfare (health, life expectancy) • Employment/income • Equity • Literacy rates • Safety (low crime) Growth makes the heterogeneous homogeneous in itself it has no meaningful value