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Niklas Höhne, n.hoehne@ecofys.de Jonathan Pershing, jpershing@wri.org. C. B. A. S. I. Workshop on Quantitative Tools & Negotiating Capacity 17 February 2006. www.basic-project.net. Content. 1. Introduction on options for international climate policy post 2012 (30 min)
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Niklas Höhne, n.hoehne@ecofys.de Jonathan Pershing, jpershing@wri.org C B A S I Workshop on Quantitative Tools & Negotiating Capacity17 February 2006 www.basic-project.net
Content 1. Introduction on options for international climate policy post 2012 (30 min) 2. Interactive demonstration of the CAIT tool developed by WRI (30 min by J. Pershing) 3. Interactive demonstration of the EVOC model developed by Ecofys (30 min) 4. Interactive demonstration of the FAIR model developed by MNP/RIVM (30 min)
Future international action on climate change network Collecting information • Activities • Institutions • Ideas Discussion forum www.fiacc.net Funded by • German Federal Environmental Agency • EU Commissions DG Environment
Content 1. Introduction on options for international climate policy post 2012 • Interactive demonstration of the CAIT tool developed by WRI 3. Interactive demonstration of the EVOC model developed by Ecofys 4. Interactive demonstration of the FAIR model developed by MNP/RIVM
Time scales of stabilization Source: IPCC Synthesis Report, 2001
Possible temperature trajectories Source: IPCC Synthesis Report, 2001 EU climate target of 2°C above pre-industrial level • 1000 to 1861, N. Hemisphere, proxy data; • 1861 to 2000 Global, Instrumental; • 2000 to 2100, SRES projections
Linking temperature to concentration Levels of CO2 concentration Preindustrial: 280 ppmCurrent: 360 ppm EU climate target Source: IPCC Syntheses Report, 2001
Stabilization pathways Reference 550ppm 450ppm 400/350ppm Source: post SRES scenarios (stabilization paths), CO2 only
Approaches • Contraction and Convergence (C&C) • Common but Differentiated Convergence (CDC) • Multistage • South North Dialogue – Equity in the Greenhouse • Brazilian Proposal • Sectoral approaches • Triptych
Contraction and Convergence • Contraction: Agreement on a global emission pathway (e.g. towards 450ppmv) • Convergence: Per capita emission converge until, e.g., 2050 Origin: Global Commons Institute www.gci.org.uk/briefings/ICE.pdf
Common but differentiated convergence (CDC) • Three stages • No commitments • “No-Lose” targets • Convergence of per capita emission level to the same level in e.g. 40 years • Participation threshold: • (time dependent) globalaverage per capita emissions Höhne, den Elzen, Weiss: “Common but differentiated convergence” accepted at Climate Policy 2005
Multistage approach • Participation in e.g. four stages: Reduction Moderate reduction Sustainable development policies and measures No commitments • Countries “graduate” to a next step, if threshold is passed, e.g. emissions/cap
South North Dialogue • Thresholds: CO2/GDP, GHG/cap, emission growth, cumulative emissions, GDP/cap, HDI; show members of the groups • Adaptation commitment
Brazilian Proposal • Emission reductions by Annex I countries proportional to contribution to temperature increase • Participation by Non-Annex I countries not defined • The only proposal still discussed under the UNFCCC, but its implementation unclear
Sectoral approaches • Emission limits for particular sectors only • Emission limits as a function of production (e.g. tCO2/tSteel) • Common emission or energy efficiency standards on one sector globally
Triptych National emission target
Overview of tools Country level historical data Emission allocation Mitigation costs
Content 1. Introduction on options for international climate policy post 2012 • Interactive demonstration of the CAIT tool developed by WRI 3. Interactive demonstration of the EVOC model developed by Ecofys 4. Interactive demonstration of the FAIR model developed by MNP/RIVM
Content 1. Introduction on options for international climate policy post 2012 • Interactive demonstration of the CAIT tool developed by WRI 3. Interactive demonstration of the EVOC model developed by Ecofys 4. Interactive demonstration of the FAIR model developed by MNP/RIVM
EVOC Tool Input • Historical emission data per country (hierarchy of emissions sources, all Kyoto gases, sectors) • Energy, population, GDP data from IEA • Future reference development (emissions, population, GDP) based on RIVM IMAGE implementation of the IPCC SRES scenarios Output • Emissions or emission allowances under various proposals for future international climate policy after 2012 • Contraction and convergence • Common but differentiated convergence • Multistage • Triptych • Proposal by the “South North Dialogue – Equity in the Greenhouse”
Delayed participation Contraction & Convergence Common but differentiated convergence IC Threshold GHG/cap GHG/cap DC LDC Time Time
Results towards 550 ppmv CO2 GHG per capita Towards 550 ppmv CO2: Threshold: 30% above world average, Convergence level: 4.5 tCO2eq/cap A1B scenario Excl. LUCF CO2
Results towards 550 ppmv CO2 GHG emissions Towards 550 ppmv CO2: Threshold: 30% above world average, Convergence level: 4.5 tCO2eq/cap A1B scenario Excl. LUCF CO2
Results towards 450 ppmv CO2 GHG per capita Towards 450 ppmv CO2: Threshold: 10% below world average, Convergence level: 2.9 tCO2eq/cap A1B scenario Excl. LUCF CO2
Results towards 450 ppmv CO2 GHG emissions Towards 450 ppmv CO2: Threshold: 10% below world average, Convergence level: 2.9 tCO2eq/cap A1B scenario Excl. LUCF CO2
Multistage Four stage emission reduction agreement • No commitments • Sustainable development policies and measures • Moderate emission limitation targets • Absolute emission reduction targets (shared according to Triptych approach) Threshold: Emissions/cap, decreasing over time
Towards 550 ppmv CO2 • Stage 3 • Entry at 6-10 tCO2eq./cap • 10%-15% below reference • Stage 4 • Entry at 9-12 tCO2eq./cap • 1-5% reduction per year
Towards 450 ppmv CO2 • Stage 3 • Entry at 3.5-4 tCO2eq./cap • ~30% below reference • Stage 4 • Entry at 5-5.5 tCO2eq./cap • ~5% reduction per year
Towards 400 ppmv CO2 • Stage 3 • Entry at 3.5 tCO2eq./cap • ~30% below reference • Stage 4 • Entry at 4 tCO2eq./cap • ~8% reduction per year
Stabilization pathways Reference 550ppm 450ppm 400/350ppm Source: post SRES scenarios (stabilization paths), CO2 only
Stabilization pathways +50% 550ppm +45% +30% +10% 450ppm -25% 400/350ppm -60% Source: post SRES scenarios (stabilization paths), CO2 only
Change 1990 to 2020 towards 450 ppm CO2 • Annex I: -10% to –30% below 1990 • No participation: South Asia and Africa. • Deviate from their reference: Latin America, Middle East, East Asia and Centrally planned Asia
Change 1990 to 2050 towards 450 ppm CO2 • Annex I: -70% to -90% below 1990 • Substantial deviation from reference in all Non-Annex I regions
Content 1. Introduction on options for international climate policy post 2012 • Interactive demonstration of the CAIT tool developed by WRI 3. Interactive demonstration of the EVOC model developed by Ecofys 4. Interactive demonstration of the FAIR model developed by MNP/RIVM
Change 1990 to 2020 towards 550 ppm CO2 • Annex I: -5% to –25% below 1990 • No participation: South Asia, Africa, Centrally Planned Asia or excess allowances under C&C or Triptych • Deviate from their reference: Latin America, Middle East and East Asia
Change 1990 to 2050 towards 550 ppm CO2 • Annex I: -40% to -80% below 1990 • Deviate from reference: Most Non-Annex I regions, except South Asia • Triptych: more reductions for coal intensive countries under these parameters
Stabilization pathways +50% 550ppm +45% +30% +10% 450ppm -25% 400/350ppm -60% Source: post SRES scenarios (stabilization paths), CO2 only
Stabilization pathways +50% 550ppm +45% +30% +10% 450ppm -25% 400/350ppm -60% Source: post SRES scenarios (stabilization paths), CO2 only
Change 1990 to 2020 towards 400 ppm CO2 • Annex I: -25% to -50% below 1990 • No participation: only a very few countries • Deviate from their reference: all Non-Annex I regions
Change 1990 to 2050 towards 400 ppm CO2 • Annex I: -80% to -90% below 1990 • Substantial deviation from reference in all Non-Annex I regions