Comparing Climate Commitments: A Model-Based Analysis of the Copenhagen Accord
AbstractThe political accord struck by world leaders at the United Nations negotiations in Copenhagen in December 2009 allows participating countries to express their greenhouse gas commitments in a variety of ways. For example, developed countries promised different percent emissions reductions relative to different base years by 2020. China and India committed to reducing their emissions per unit of gross domestic product (GDP) relative to 2005 by 40 and 20 percent respectively. Such flexibility promotes consensus by allowing each country to use its preferred commitment formulation. However, the disparate approaches and widely varying baseline trends across different economies complicate comparing the likely emissions reductions and economic efforts required to achieve the commitments. This paper provides such a comparison by analyzing the Copenhagen targets using the GCubed model of the global economy. We begin by formulating a no-policy baseline projection for major world economies. We then model the Copenhagen Accord’s economy-wide commitments, with a focus on fossil-fuel-related CO2. We show how different formulations make the same targets appear quite different in stringency, and we estimate and compare the likely economic and environmental performance of major emitters’ Copenhagen targets. The analysis also explores the spillover effects of emission reductions efforts on countries that did not adopt economy-wide emissions targets at Copenhagen. We emphasize that this work is not a policy analysis or a prediction about how countries will actually achieve their commitments. Rather, it offers a way of standardizing and comparing heterogeneous proposals with an eye towards assessing their relative environmental and economic consequences.
Download InfoIf you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
Bibliographic InfoPaper provided by Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University in its series CAMA Working Papers with number 2010-24.
Length: 44 pages
Date of creation: Aug 2010
Date of revision:
Contact details of provider:
Postal: Crawford Building, Lennox Crossing, Building #132, Canberra ACT 0200
Phone: +61 2 6125 4705
Fax: +61 2 6125 5448
Web page: http://cama.crawford.anu.edu.au
More information through EDIRC
Other versions of this item:
- Warwick J. Mckibbin & Adele C. Morris & Peter J. Wilcoxen, 2011. "Comparing Climate Commitments: A Model-Based Analysis Of The Copenhagen Accord," Climate Change Economics (CCE), World Scientific Publishing Co. Pte. Ltd., vol. 2(02), pages 79-103.
You can help add them by filling out this form.
CitEc Project, subscribe to its RSS feed for this item.
- Warwick J McKibbin & Adele C Morris & Peter J Wilcoxen, 2012. "Bridging the Gap: Integrating Price Mechanisms Into International Climate Negotiations," CAMA Working Papers 2012-55, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
- Yingying Lu & Alison Stegman & Yiyong Cai, 2012. "Emissions Intensity Targeting: From China's 12th Five Year Plan to its Copenhagen Commitment," CAMA Working Papers 2012-45, Centre for Applied Macroeconomic Analysis, Crawford School of Public Policy, The Australian National University.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Cama Admin).
If references are entirely missing, you can add them using this form.