PPP-correction of the IPCC emission scenarios - does it matter?
Ian Castles and David Henderson have criticized IPCCÂ’s Special Report on Emissions Scenarios (SRES) (IPCC, 2000) for using market exchange rates (MER) instead of purchasing power parities (PPP) when converting regional GDP into a common denominator. The consequence is that poor countries generally appear to be poorer than they actually are. An overstated income gap between rich and poor countries in the base year gives rise to projections of too high economic growth in the poor countries because the scenarios are constructed with the aim of reducing the income gap. Castles and Henderson claim that overstated economic growth means that greenhouse gas emissions are overstated as well. However, because closure of the emission intensity gap between the rich and the poor parts of the world is another important driving force in the scenarios, we argue that the use of MER in the SRES scenarios has not caused an overestimation of the global emission growth because the two types of errors effectively neutralize one another.
|Date of creation:||Feb 2004|
|Date of revision:|
|Contact details of provider:|| Postal: P.O.Box 8131 Dep, N-0033 Oslo, Norway|
Phone: (+47) 21 09 00 00
Fax: (+47) 21 09 49 73
Web page: http://www.ssb.no/en/
More information through EDIRC
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Nebojsa Nakicenovic & Arnulf GrÃ¼bler & Stuard Gaffin & Tae Tong Jung & Tom Kram & Tsuneyuki Morita & Hugh Pitcher & Keywan Riahi & Michael Schlesinger & P. R. Shukla & Detlef van Vuuren & Ged Davis &, 2003. "IPCC Sres Revisited: A Response," Energy & Environment, , vol. 14(2), pages 187-214, May.
When requesting a correction, please mention this item's handle: RePEc:ssb:dispap:366. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (J Bruusgaard)
If references are entirely missing, you can add them using this form.