2. Working Group III contribution to the
IPCC Fifth Assessment Report
GHG emissions growth has accelerated
despite reduction efforts.
3. Working Group III contribution to the
IPCC Fifth Assessment Report
But emissions growth has accelerated in the last decade –
driven by CO2 from fossil fuel combustion
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4. Working Group III contribution to the
IPCC Fifth Assessment Report
There is far more carbon in the ground than emitted in any
baseline scenario.
4
Based on SRREN Figure 1.7
5. Working Group III contribution to the
IPCC Fifth Assessment Report
Climate change mitigation is possible –
and early action will make it easier
6. Working Group III contribution to the
IPCC Fifth Assessment Report
Stabilising the atmosphere means moving away from business-
as-usual – regardless of how ambitious we are.
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40-70% reduction
7. Working Group III contribution to the
IPCC Fifth Assessment Report
Delaying mitigation until 2030 increases the difficulty and
narrows the options for limiting warming to 2°C.
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8. Working Group III contribution to the
IPCC Fifth Assessment Report
Ambitious mitigation involves
transformation of the energy system.
9. Working Group III contribution to the
IPCC Fifth Assessment Report
9
Emission patterns would need to change
throughout the economy.
10. Working Group III contribution to the
IPCC Fifth Assessment Report
10
Emission patterns would need to change
throughout the economy.
11. Working Group III contribution to the
IPCC Fifth Assessment Report
Reducing energy demand is key -
efficiency and behavioural change.
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12. Working Group III contribution to the
IPCC Fifth Assessment Report
12
Reducing energy demand is key
13. Working Group III contribution to the
IPCC Fifth Assessment Report
Decarbonization of energy supply would be needed
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14. Working Group III contribution to the
IPCC Fifth Assessment Report
14
Decarbonization of energy supply would be needed.
15. Working Group III contribution to the
IPCC Fifth Assessment Report
15
Decarbonization of energy supply would be needed.
16. Working Group III contribution to the
IPCC Fifth Assessment Report
Mitigation comes at a cost,
but strong economic growth can continue.
17. Working Group III contribution to the
IPCC Fifth Assessment Report
Global costs rise with the ambition of the mitigation goal.
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18. Working Group III contribution to the
IPCC Fifth Assessment Report
Substantial reductions in emissions would require large
changes in investment patterns.
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19. Working Group III contribution to the
IPCC Fifth Assessment Report
Climate change mitigation can bring co-benefits – health, energy
security and other societal goals.
19
Based on Figures SPM.6 and 12.23
20. Working Group III contribution to the
IPCC Fifth Assessment Report
Plans and strategies have expanded since 2007.
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