Allocating greenhouse gas emissions to shipments in road freight transportation: Suggestions for a global carbon accounting standard. (November 2016)

• Record Type: Journal Article
• Authors: Kellner, Florian
• Is Part Of: Energy policy. Volume 98(2016)
• Page Start: 565
• Page End: 575
• Publication Date: 2016-11
• Subjects: Greenhouse gas emissions -- Road freight transportation -- Allocation -- EN 16258 -- Game theory -- Shapley value; Energy policy -- Periodicals; Politique énergétique -- Périodiques; Electronic journals; 333.79
• DOI: 10.1016/j.enpol.2016.09.030
• Languages: English
• ISSNs: 0301-4215

Abstract

Abstract: The European Norm EN 16258 was published in 2012 to provide a common methodology for the calculation and declaration of energy consumption and greenhouse gas emissions related to any transport operation. The objective was to offer a pragmatic and scientifically-acceptable approach that allows a wide group of users to prepare standardized, accurate, credible, comparable, and verifiable energy consumption and emission declarations. However, in its current form, EN 16258 contains gaps and ambiguities, and leaves room for interpretation, which makes comparisons of supply chains difficult. This research aims to overcome the shortcomings in the domain of allocating emissions from road freight transport operations to single shipments. Based on a discussion of emission drivers and the results of numerical experiments comparing the allocation vectors created by the EN 16258 allocation rules with those generated by the Shapley value, which is claimed to be the benchmark, 'distance' is identified as the single most useful unit for bridging the trade-off between accuracy and simplicity better than the other recommended allocation schemes. Thus, this paper claims that future versions of EN 16258 should only allow the allocation unit 'distance.' This will promote the accurateness, simplicity, consistency, transparency, and comparability of emission declarations. Highlights: Shipment inherent GHG emission drivers are discussed. The Shapley value is used to study the accurateness of different allocation rules. Suggestions for a global carbon accounting standard are presented. 'Distance' should be the only factor used to allocate transport GHG to shipments.