Based on the expert contributions and discussions at the Expert Meeting, and taking into account the current status of the science of alternative metrics reported in the scientific literature, the following key conclusions and recommendations to UNFCCC have been formulated in response to the UNFCCC request to IPCC and were unanimously agreed on by meeting participants: 1. Global Warming Potential (GWP) is a well-defined metric based on radiative forcing that continues to be useful in a multi-gas approach. Shortcomings have been identified; however the scientific basis has not been fully established to address these shortcomings comprehensively in any currently discussed metric; 2. The effectiveness of the use of a given metric depends on the primary policy goal, for example to limit the long term temperature change, limit rates of change, avoid particular impacts, and balance costs and benefits. The GWP was not designed with a particular policy goal in mind. Depending on the specific policy goal or goals, alternative metrics may be preferable; 3. The GWP with the time horizon of 100 years is used in the Kyoto Protocol. The numerical value of the GWP can depend markedly on the choice of time horizon. The choice of any particular time horizon involves value judgments in terms of future commitment to radiative forcing; 4. Timely information on potential future policy goals would facilitate research on alternative metrics. Recommendations to the Scoping of IPCC Fifth Assessment Report (AR5): 1. It is important that the assessment of metrics be included in the IPCC AR5 process in an integrated manner with participation from all three working groups and the IPCC Task Force on Greenhouse Gas Inventories (TFI); 2. This process should include an assessment of, and if appropriate, numerical values for metrics that have been proposed in the literature; 3.The assessment should elucidate the relationship between physical metrics and more comprehensive metrics that include economics. (LN).
|Contributions||Stocker, T., Midgley, P., Tignor, M., Intergovernmental Panel on Climate Change (IPCC)|
|The Physical Object|
|Number of Pages||82|
This extended report of the IPCC Expert Meeting on the Science of Alternative Metrics that was held in Oslo March is provided in response to an invitation from the UN Framework Convention on Climate Change Ad Hoc Working Group on Further Commitments for Annex I Parties under Kyoto Protocol (UNFCCC AWG-KP) to the Inter- governmental Panel on Climate Change (IPCC) to undertake further technical assessment of alternative common metrics . Sign in. IPCC Expert Meeting on the Science of Alternative Metrics - Google Drive. Sign in. discussions and conclusions of the Intergovernmental Panel on Climate Change (IPCC) Expert Meeting on Assessing and Combining Multi Model Climate Projections, which was held in Boulder, USA on January It seeks to briefly summarize methods used in assessing the quality and reliability of climate model. IPCC Expert Meeting Report: Towards New Scenarios i Technical Summary I. Background Scenarios of potential future anthropogenic climate change, underlying driving forces, and response options have always been an important component of the work of the Intergovernmental Panel on Climate Change (IPCC). In the past, the IPCC coordinated the.
The primary product of the Expert Meeting will be a report that recommends principles to guide the IPCC’s engagement in potential studies of the IPCC process, for consideration by the IPCC Panel. The report of the meeting will explain the motivation behind the suggestions. IPCC Expert Meeting Report – Towards New Scenarios for Analysis of Emissions, Climate Change, Impacts, and Response Strategies Supporting Material — Septem Noordwijkerhout, The Netherlands. SBSTA 34 () expressed its appreciation to the IPCC for holding an expert meeting, held in Oslo, Norway, from 18 to 20 March , on the science of alternative metrics, following an invitation to the IPCC by the Ad Hoc Working Group on Further Commitments for Annex I Parties under the Kyoto Protocol (FCCC/KP/AWG//5, paragraph 45). This IPCC Methodology Report titled the. Refinement to • Provides additional or alternative up-to-date information and guidance, where possible, as clarification or technical assessment of IPCC inventory guidelines through an on-line questionnaire survey and four expert meetings in and
IPCC Expert Meeting for Technical Assessment of IPCC Inventory Guidelines (Cross-sectoral issues) Wollongong, Australia, 27 – 29 April Co-Chairs Summary. 1. In accordance with the IPCC Trust Fund programme and budget for the year and (approved by the IPCC. IPCC Meeting Report of the Expert Meeting on the Science of Alternative Metrics ed G-K Plattner, T F Stocker, P Midgley and M Tignor (IPCC Working Group I Technical Support Unit, University of Bern, Bern, Switzerland) p Google Scholar. IPCC (). Report of IPCC Scoping Meeting for a Methodology Report(s) to refine the IPCC Guidelines for National Greenhouse Gas Inventories. Eds: Ngarize, S., Kranjc, A., Baasansuren, J., and Shermanau, P. Report of the IPCC Scoping Meeting, Pub. IGES, Japan. IPCC Task Force on National Greenhouse Gas Inventories (TFI) Technical Support Unit. IPCC Expert Meeting on Use of Models and Measurements in GHG Inventories: August Sydney, Australia: Meeting Report File posted 10/03/ Co-Chairs Summary File posted 09/11/10 List of Participants File posted 09/11/ Presentations (MB) File posted 09/11/ IPCC Expert Meeting on Uncertainty and Validation of Emission.