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Working Group III contribution to the IPCC Fifth Assessment Report
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Youba SOKONACo-Chair, Working Group III
Highlights of the IPCC Fifth Assessment ReportUnited Nations Conference Centre17-18 August 2015, Bangkok, Thailand
Working Group III contribution to the IPCC Fifth Assessment Report
GHG emissions growth has accelerated despite reduction efforts.
Working Group III contribution to the IPCC Fifth Assessment Report
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GHG emissions growth between 2000 and 2010 has been larger than in the previous three decades.
±4.5Gt
Working Group III contribution to the IPCC Fifth Assessment Report
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More than half of the cumulative anthropogenic emissions of CO2 between 1750 and 2010 have occurred in the last 40 years.
IPCC WGIII AR5 based on Figure 5.3
Working Group III contribution to the IPCC Fifth Assessment Report
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Most of the recent GHG emission growth has been driven by growth in economic activitiy.
Working Group III contribution to the IPCC Fifth Assessment Report
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The long-standing trend of gradual decarbonisation of energy has reversed recently.
Working Group III contribution to the IPCC Fifth Assessment Report
Limit warming to 2°C relative to pre-industrial levels involves substantial technological, economic and institutional challenges.
Working Group III contribution to the IPCC Fifth Assessment Report
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Stabilization of atmospheric concentrations requires moving away from the basline – regardless of the mitigation goal.
Working Group III contribution to the IPCC Fifth Assessment Report
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Stabilization of atmospheric concentrations requires moving away from the basline – regardless of the mitigation goal.
Working Group III contribution to the IPCC Fifth Assessment Report
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Stabilization of atmospheric concentrations requires moving away from the basline – regardless of the mitigation goal.
~3°C
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation increases the difficulty and narrows the options for limiting warming to 2°C.
„immediate action“
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation increases the difficulty and narrows the options for limiting warming to 2°C.
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation increases the difficulty and narrows the options for limiting warming to 2°C.
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation is estimated to increase the difficulty and narrow the options for limiting warming to 2°C.
„immediate action“
„delayed mitigation“
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation is estimated to increase the difficulty and narrow the options for limiting warming to 2°C.
Working Group III contribution to the IPCC Fifth Assessment Report
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Delaying mitigation is estimated to increase the difficulty and narrow the options for limiting warming to 2°C.
Current Cancun Pledges imply increased mitigation challenges for
reaching 2°C.
Working Group III contribution to the IPCC Fifth Assessment Report
Mitigation cost estimates vary, but do not strongly affect global GDP growth.
Working Group III contribution to the IPCC Fifth Assessment Report
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Avoiding dangerous climate change is a necessary, but not sufficient condition for sustainable development.
Working Group III contribution to the IPCC Fifth Assessment Report
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Co-benefits of climate change mitigation for human health could be large and provide short-term incentives for climate policies.
Based on Figures SPM.6 and 12.23
Working Group III contribution to the IPCC Fifth Assessment Report
Climate change mitigation is a global commons problem that requires
international cooperation and coordination across scales.
Working Group III contribution to the IPCC Fifth Assessment Report
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Overview of findings of AR5 WGIII
