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

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Comments
IPCC WGIII Fourth Assessment Report, Second Order Draft
trillion barrels would indicate a chronic global shortfall of ability to
supply in relation to projected demand by the early 2020s, 2030s,
and 2040s, respectively. Most estimates of the ultimately
recoverable conventional oil resource are in the 2 trillion range. Tar
sands and shale recoverable resources are modest by comparison.
(Michael Jefferson, World Renewable Energy Network &
Congresses)
14 A 12 13 12 13 Insert 'and energy demand' mitigation options is available in the
short to medium time…
(Government of Spain)
14 A 12 14 12 18 Use more than one technology to illustrate co-benefits. The
examples have a heavy bias to CCS, and some other
examplesshould be used to balance this. The hydrogen example
also refers to CCS
(Harald Winkler, University of Cape Town)
14 A 12 14 12 16 Another critical issue is how rapidly renewable energy sources (and
efficiency) can be deployed, reducing the amount of fossil CCS and
nuclear that is needed. Arguably, there are renewable energy
technologies available today that have much fewer environmental,
economic and energy security risks and uncertianties than advanced
coal and nuclear plants that can also be deployed much more
quickly on a large scale.
(Steve Clemmer, Union of Concerned Scientists)
14 A 12 14 12 16 It might be worth adding that not only is retrofitting economically
unattractive, but also that the power plants most amenable to CCS,
ie IGCC plants, tend to come at a higher base cost than current, topefficiency
standard plants - which again raises the issue that some
type of government intervention would be necessary to bring about
the widespread introduction of CCS. Right now the paragraph
could be read as if CCS would, once developed and tested, diffuse
naturally and would not face any cost barriers. That conclusion
would clearly be incorrect.
Expert Review of Second-Order-Draft
Confidential, Do Not Cite or Quote
Response suggested by cochairs
Action
for
chapter
Considerations
by the writing
team
UNCLEAR Rejected. We
are discussing
Energy Supply
here.
TIA; current text only illustrates
the challenges to get to clean
energy; add something on cobenefits
as well
TIA; add something on
renewables challenges as well
See ch 4 proposals, but point IS
valid.
TIA; SRCCS shows that IGCC
is more costly than PC without
CCS, but that it is the other way
around with CCS; try to modify
text to reflect that
(4)
Accepted. More
examples will
be added.
(4)
Rejected. Main
conclusion from
this report is
that all options
will be required
to mitigate
climate change.
(4)
Accepted.
Should read:
“how quickly
new plants are
going to be
equipped with
CCS”
(4)
Page 225 of 348