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

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IPCC WGIII Fourth Assessment Report, Second Order Draft
those benefits. Co-benefits occur when policies are designed to
achieve multiple objectives. It is unlikely that any government
would design a without having multiple objectives, including
greenhouse gas emission mitigation, in mind. This point is made
explicitly in the Technical Summary, Pg. 104, lines 35-37 and in
Section 13.2.2.7, Chapter 13, Pg. 35-36. While ancillary benefits
have a theoretical meaning, the emphasis should be put on cobenefits,
stressing to policymakers that properly designed policies
can achieve multiple goals.
(Lenny Bernstein, L. S. Bernstein & Associates, L.L.C.)
SPM-41 0 A 0 0 0 0 Missing from this SPM, and from the report itself, is a discussion of
which technologies provide the largest mitigation potential in 2030.
A careful reading of Chapters 4-10 indicates that energy efficiency
will be the most important technology, but policymakers and other
readers whould not have to dig for this information. Chapter 11
should provide a roll-up of mitigation potential by technology
analogous to the rollup of mitigation by sector and cost contained in
Table 11.3.
(Lenny Bernstein, L. S. Bernstein & Associates, L.L.C.)
SPM-42 0 A 0 0 0 0 The SPM is very readable and presents many highly policy-relevant
findings. The only problem is that many of its key summary
findings are not well supported by the TS, because TS contains
summaries of individual chapters, but virtually nothing to
summarise across chapters.. This leaves a degree of arbitrariness in
terms of what key messages are highlighted in the SPM. The SPM
would be stronger if the TS clearly builds up material provided in
the underlying chapters, as an intermediate step as it were, in the
same way as successive layers of a pyramid support its top with an
increasingly narrowing (=more focused) base. This is more a
comment on the TS than the SPM, but it is very relevant for the
robustness of the SPM.
(Andy Reisinger, TSU IPCC Synthesis Report)
SPM-43 0 A 0 0 0 0 What's missing in this SPM is the consideration that policies
followed may modify the costs and availability of mitigation
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
TIA, see A-3
DISCUSS
SPM key messages must be in
TS/ES. Will be done/improved.
DISCUSS
Action
for
chapter
Considerations
by the writing
team
TS CLA disc:
Ensure
consistency
SPM-TS
11 & 3 Section in
chapter
Page 10 of 348