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

Chapter-
Comment
para
Batch
From Page
From Line
To Page
To line
Comments
IPCC WGIII Fourth Assessment Report, Second Order Draft
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
Action
for
chapter
Considerations
by the writing
team
SPM- 26 A 14 36 14 37
(Government of Sweden)
The more specific sentence on the 20-25$ seems much more See A-1024
1046
interesting than the current well-known and very general 1st
sentence. I sugegst to move it up in bold italics.
(Rob Swart, MNP)
SPM- 26 A 14 36 14 38 This statement is overly optimistic and should be brought in line DISCUSS, see also A-1040 11 See above
1047
with the more accurate information provided in the Technical
Summary (Table TS 9): 85% of CO2-abatement projects with CCSplants
will cost more than 50 USD/t. Thus it is inaccurate to speak
of "large-scale shifts" from a cost level of 20 to 25 Dollar onwards,
and the number should be replaced with 50 Dollars in line 37.
(,)
SPM- 26 A 14 36 14 38 The paragraph states that carbon pricing is an essential incentive for See A-1040
1048
implementing mitigation options and carbon prices of US$20 to 25
per t/CO2 eq can begin to drive large scale shifts to zero carbon
power supply…Although such a shift may be economical at such a
price range, the cited paragraph should emphasize the local &
regional clean energy availability constraints (not all regions of a
country has clean energy potential like hydro capacity, wind etc)
and the need for public/private partnerships to invest in clean fossil
fuels as stated in other sections of the report.
(Eli Turk, Canadian Electricity Association (CEA))
SPM- 26 A 14 36 14 36 Carbon pricing will also reduce the rebound effects e.g. of
REJ; too detailed for SPM
1049
increased consumption created by the money saved by increased
energy efficiency etc.
(Government of Norwegian Pollution Control Authority)
SPM- 26 A 14 37 14 37 It appears somewhat of an overstatement to say that US$20-25 / See A-1040
1050
tCO2 drive a large scale shift TO zero carbon power supply. Many
studies find that prices several times higher than this are required to
actually achieve a zero carbon power supply on a global scale. It
would be more correct to talk about a shift "towards" rather than
"to" zero carbon power supply at this price level.
(Andy Reisinger, TSU IPCC Synthesis Report)
SPM- 26 A 14 37 14 37 Broadening the price range to, say, 20-50 $ would make the See A-1047, 1050
Page 282 of 348