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

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Comments
IPCC WGIII Fourth Assessment Report, Second Order Draft
availability, high additional costs which move CCS to a similar cost
performance as the mix of renewables, local impacts and risks, and
leakage which lowers the CO2 reduction depending on the upper
time integration boundary (time frame 100 years? 1000 years?) etc.
(Government of Germany)
A 7 21 7 25 Figure SPM4 needs footnote explaining what is CCS and what is
biofuels with CCS. Add footnote explaining that "fossil fuel
switch" means switching from e.g. coal to oil and not switching
from fossil to renewables
(Rachel Warren, University of East Anglia)
A 7 22 0 0 It would be interesting to have this same Figure for 2030 (from
intermediate model results which should be available in the same
database as the one used for this Figure, possibly also for Chapter
11 and the TS), and to compare the result with the Table of
potentials from the sectoral Chapters. This emerged from a
discussion in the SYR team that has to distinguish the short to
medium term (up to 2030) from the longer term (beyond 2030), but
would also be very relevant for the main WG3 report! Particularly,
it would be interesting to know which technologies are relevant for
the shorter term and which ones are only suggested to become
important after 2030 (e.g. hydrogen fuel cell cars, other?).
(Rob Swart, MNP)
A 7 22 7 25 Figure SPM.4 needs an indication (perhaps in the caption) of the
2100 baseline emission with respect to which these emissions are
calculated, to provide information on whether the reductions are
modest or large. Alternatively, the figure could present percentage
rather than absolute emissions reductions.
(Michael Raupach, CSIRO Marine and Atmospheric Research)
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
Action
for
chapter
Considerations
by the writing
team
ACC; change wording Accepted. Add
explanations on
the figure.
(4)
DISCUSS; try develop similar
figure for 2030 (see also A-455)
3,11 Noted. Figure
being revised.
(3)
Are the data
available for
this?
Can the model
results be
provided for
2030.
(11)
Accepted. The
modified figure
will include
results for 2030.
ACC; use %; see also A-455 Accepted.
Figure will be
redrafted.
(4)
SPM- 6 A 7 22 7 22 Sentence would be more useful and less controversial if it more TIA in reformulating Strong policy
(4)
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