SODBatch A&B SPM Comments co-chair response final ... - ipcc-wg3

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Comments
IPCC WGIII Fourth Assessment Report, Second Order Draft
A 5 4 5 4 replace "such levels" by "around 450 ppmv CO2-eq levels"
(Aviel VERBRUGGEN, University of Antwerp)
A 5 4 5 4 replace "lead to peaking" by "strive for passing the peak"
(Aviel VERBRUGGEN, University of Antwerp)
A 5 4 5 4 Insert comma after "levels"
(Government of MALAWI)
A 5 4 5 5 This sentence is awkward and unclear. Proposed rewording:"To
achieve such levels, policies should result in a peaking of global
emissions within the next few decades."
(Government of Environment Canada)
A 5 4 5 5 "For achieving ……few decades". It is suggested to add after this
as follows...."However, given the very high inertia of the energy
system (Ref. point no. 6, page 7 of the SPM), the long timeframe
for the R&D investments to yield results, the high social and
institutional inertia causing the time lags between the policy
formulation and implementation and the uncertainty in the
estimates of climate sensitivity; the investments in the initiatives for
achieving the peaking of global emissions should start immediately
if the overall costs and risks from the climate change is to be
minimized.”
(Government of India)
B 5 4 5 4 To what does “such levels” refer? 450 ppm? The text should be
clearer about the relationship between stabilization pathways and
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
TIA; heading text to be deleted,
but wording to be used for
merging with para 6
TIA; heading text to be deleted,
but wording to be used for
merging with para 5
TIA; heading text to be deleted,
but wording to be used for
merging with para 6
TIA; heading text to be deleted,
but wording to be used for
merging with para 6
TIA; heading text to be deleted,
but wording to be used for
merging with para 6/7
TIA; heading text to be deleted,
but wording to be used for
Action
for
chapter
Considerations
by the writing
team
Page 92 of 348