Value chain · CLM-0825
In plain terms
The authors argue that the cost-based way of estimating carbon is too coarse for a custom-built industry like spacecraft, and they conclude that their own materials-and-process method should be preferred for space studies.
The claim as recorded
Wilson, Oqab and Dietrich state that EEIO methods rest on aggregate sector-level monetary data where, in their words, the assumption of a linear relationship between monetary and environmental flows "yields only approximate results and cannot differentiate between products with varying monetary values within the same sector", and conclude that "it was determined that process-based modelling should be seen as the preferred choice over EEIO analyses for space LCA studies".
Scope and limits
A stated methodological preference of the authors, not an independently adjudicated finding. The authors are practitioners of the process-based tool the paper recommends and are an interested party in this dispute. This record may NOT be used to support that process-based results are more accurate in an absolute sense, only that these authors judge the input data more granular for space systems. The verb is "should be seen as", a recommendation, not a requirement.
What it assumes
No assumptions are recorded against this claim.
Where it comes from
printed p.5: "However, the assumption of a linear relationship between monetary and environmental flows yields only approximate results and cannot differentiate between products with varying monetary values within the same sector [26]." Printed p.11: "By analysing the advantages and limitations of each approach, it was determined that process-based modelling should be seen as the preferred choice over EEIO analyses for space LCA studies."
Related records
- Answers question
- QST-008 not published in this release
Cite this
energyaperture.com/c/clm-0825
CLM-0825, Energy Aperture, as of 2024.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-009
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