Transcript Structure and operation of IPCC

IPCC Third Assessment Report
Overview: Mitigation of Climate
Change
UNFCCC COP 6 Part Two Special Event,
July 2001
Structure and operation of IPCC
Plenary: all (>150) countries
Wg I
Wg II
Wg III
TFInv
Bureau, Secretariat, TSUs
Scientific authors (hundreds
of CLAs, LAs, CAs)
Expert and
housands
Government
Reviewers
(thousands)
The TAR WG 3 process
• Broad array of disciplines, geographical balance
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of authors: 150 lead authors, 80 contributing
authors, over 300 reviewers, 64 authors from
developing countries
3 year process which involves four lead author
meetings and several chapter meetings
One expert review and an expert/government
review
19 review editors were involved to ensure the
inclusion of review comments
SPM was approved and underlying report
accepted unanimously by IPCC WG 3 plenary in
Accra, Ghana, March, 2001
Inputs to the Report
• The assessment used over 4000 peer reviewed
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literature and publicly available relevant reports
Previous IPCC reports, including Special Report
on Aviation and the Atmosphere, Technology
Transfer, Emission Scenarios, and LULUCF
• The results of ten expert meetings on
specialised topics
Structure of the report (1)
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Setting the stage: climate change and
sustainable development
• GHG mitigation scenarios and
implications
• Technological and economic potentials
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– energy and industrial options
– biological options
Barriers and opportunities
Structure of the report (2)
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Policies, measures and instruments
Mitigation cost and ancillary benefits
– Costing methodologies
– Global, regional and national costs and
ancillary benefits
– Sector costs and ancillary benefits
Decision making frameworks
Main messages (1)
• There is a strong link between sustainable
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development, environmental management and
climate change mitigation
Technologies are presently available, in the
short term, to stop the growth of global GHG
emissions and, in the long term, to limit climate
change impacts
Main messages (2)
• The costs of implementing the Kyoto Protocol
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can be kept low, provided implementation is
done efficiently;
Long-term costs depend on the choice of
stabilisation level, baseline and the timing of
mitigation
Main messages (3)
• The problem of controlling emissions is to
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overcome the many political, economic, social
and behavioural barriers to implement
mitigation options
Decision making on climate change is risk
management; for low level stabilisation, early
mitigation action is needed
Integrating mitigation and sustainable
development policies improves the prospect of
achieving stabilization and sustainable
development goals