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

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IPCC WGIII Fourth Assessment Report, Second Order Draft
(Catherine Pearce, Friends of the Earth International) para 7
A 5 5 5 6 “the lower the stabilization level…..” Is the sentence needed? Why,
What’s the contribution to the paragraph? P? References?
(Juan F Llanes-Regueiro, Havana University)
A 5 5 5 6 This looks a strange statement; the whole meaning of IPCC is in
trying to bring costs and uncertainties down by urging policy
makers to act in due time. Here it seems we argue the reverse. At
least replace "the costs and the uncertainty" by "the nearby costs
and uncertainties", but a fuller reconsideration of this short
statement is recommended. It also seems to conflict with the
statement on line 12-14 in the following §
(Aviel VERBRUGGEN, University of Antwerp)
A 5 5 5 5 The text "The lower the stabilisation level, the higher the costs and
uncertainty." is unclear. Does the uncertainties refer to the costs, the
emission level or the feasibility? Please clarify.
(Government of Finland)
A 5 5 5 6 Which costs are higher? Does this statement refer only to costs of
developing and implementing mitigation technologies at the
required pace to reach a specific reduction target or does it balance
these costs against expected abatement cost related to climate
change impacts, which will probably increase with higher
stabilization levels.
(Government of Germany)
A 5 5 5 6 Uncertainty about what? Uncertainty about which level of CO2 will
reach which temperature levels or uncertainty about the
effectiveness of the policies or uncertainty about whether the
investments made will really reach the desired stabilitzation level?
(Government of Germany)
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Confidential, Do Not Cite or Quote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 considered for
para 7
TIA; heading text to be deleted,
but wording to be considered for
para 7
TIA; heading text to be deleted,
but wording to be considered for
para 7
TIA; heading text to be deleted,
but wording to be considered for
para 7
TIA; heading text to be deleted,
but wording to be considered for
para 7
SPM- 5 A 5 5 5 6 Costs in the sentence refers to mitigation costs only. Thus, should TIA; heading text to be deleted,
Action
for
chapter
Considerations
by the writing
team
Page 95 of 348