Ministry of the Environment, COP22 JAPAN PAVILION Start OUR Story

11/15
TUE

13:30-14:45

Title	NDC Policy Choices and Levels of Effort
Contents	This side event will present new modeling insights from several international research institutions examining NDC mitigation policies that can lower the cost of action and thereby increase ambition. Results will be presented for the NDCs of major emitters.
Organiser / Co-organiser	Research Institute of Innovative Technology for the Earth (RITE) / Resources for the Future (RFF）/ Fondazione Eni Enrico Mattei (FEEM) / Harvard University
Programme	Introduction Pr. Raymond Kopp: Senior Fellow and Co-Director of the Center for Energy and Climate Economics, Resources for the Future, USA Transparency, Policy Surveillance, and the Comparison of Mitigation Efforts Dr. Joseph Aldy: Associate Professor of Public Policy, Harvard University’s Kennedy School of Government, and Nonresident Fellow, Resources for the Future, USA Evaluations on Emission Reduction Efforts of Nationally Determined Contributions(NDCs) in cost metrics Dr. Keigo Akimoto: Group Leader, Chief Researcher, Systems Analysis Group, Research Institute of Innovation Technology for the Earth, Japan Transparency, Policy Surveillance, and Levels of Efforts Dr. Lara Aleluia Reis: Researcher, Fondazione Eni Enrico Mattei, and Euro-Mediterranean Center on Climate Change. Italy Q&A Closing
Session Summary	Pr. Kopp introduced this session. Dr. Aldy presented the framework and the principles of the NDC evaluation, as well as a brief overview of results obtained with the four models involved in this joint study (DNE21+, WITCH, GCAM, MERGE). Dr. Akimoto presented NDC comparison based on several indicators, from simple metrics (e.g. emissions per capita) to more advanced metrics such as marginal abatement costs. Dr. Aleluia Reis compared the outcome of several scenarios of NDC implementation combined or not with other policies such energy pledges, and different optimization methods. Q&A : Do the abatements costs reflect the real costs? What can you do to improve the credibility and visibility of such a study? Models are only a simplified version of reality, and should of course be modified as the world evolves to continuously improve its representation of reality. However, it would not be reasonable to try and include each of the 1000 climate policies into the model: the challenge is to balance the trade-off between detailed representation of reality and manageability of the model. The value of such model analysis is that as researchers, we provide a clear transparent evaluation, and such model-based evaluation can trigger peer pressure and help raise the ambition of NDC.
Key Messages	The Paris Agreement signals a new era for international collaboration on climate change, and requires continuously increased ambition from all parties. This side event featured new modeling insights from three international research institutions. Panelists focused on the transparency and comparability of mitigation effort as defined by the nationally determined contributions (NDCs) of major emitters, including the European Union, Japan, Russia, India, South Africa, China, and the United States. The value of such model analysis is that as researchers, we provide a clear transparent evaluation, and such model-based evaluation can trigger peer pressure and help raise the ambition of NDC.
Materials	Event Flyer (PDF・153KB) Presentation 1 (PDF・58KB) Presentation 2 (PDF・243KB) Presentation 3 (PDF・750KB) Presentation 4 (PDF・1,657KB)
Photos
Reporters	Nakagami Yasuhide, Bianka Shoai Tehrani,　Research Institute of Innovative technology for the Earth (RITE)

Tue 15 November 13:30-14:45