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

Chapter-
Comment
SPM-
743
SPM-
744
para
Batch
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Comments
IPCC WGIII Fourth Assessment Report, Second Order Draft
mitigation costs.
(Christopher Green, McGill University)
10 A 11 19 11 28 These GDP results cannot stand alone. The least one can do to
improve these informations is to explain how important
assumptions made are to the results, especially assumptions about
capital mobility, use of credits from Joint Implementation and
Clean Development Mechanism and oil prices. Depending on these
assumptions the GDP impact will vary greatly. This can among
other studies be seen from the study made by the EU Commissions
research unit IPTS (Analysis of Post-2012 Climate Policy
Scenarios with Limited Participation, June 2005. Study is included)
and the study made by COWI for UNICE (Competitiveness and EU
Climate Change Policy, october 2004. Study is included in the
email).
(Helle Juhler-Kristoffersen, Confederation of Danish Industries)
10 A 11 19 11 28 Section 10 reports 650 to 550 ppmv but section 7 deals with 550
and 450 - this could be confusing
(Ann Gardiner, AEA Technology)
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
Action
for
chapter
Considerations
by the writing
team
usually made
explicitly.
(11) On the
basis of the
definition of
‘’backstop’’ this
comment is
rejected. Most
modellers avoid
backstops. Too
complicated to
identify which
options have
backstop
technologies.
See A-742 REJ. Already
taken into
account. Model
studies adopt
different
assumptions.
Quoted
outcomes
address these.
(11)
ACC; something about 450
should be said here
There are too
few studies to
report cost
estimates for
450ppm CO2-eq
(11) this needs
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