← Reliability

EcoSpold 2 · Calculation comparison

ecoinvent 3.11 cut-off, climate change: fossil

A comparison of published impact results with VoLCA calculations from the same source data and the publisher’s impact factors. Points on the diagonal agree.

This page shows engine v0.13.0, which is not the newest measured. Compare the engine versions, or see the current comparisons.

Engine version
volca 0.13.0 (8c0396c, v0.13.0, linux)
Measured on
Comparison measurements and reference
Databaseecoinvent 3.11 cut-off
Source formatEcoSpold 2
Impact method collectionEF v3.1
Impact categoryclimate change: fossil
Unitkg CO2-Eq
Activities compared19,099
Median ratio (VoLCA / published)1.0305
Comparison band1%
Activities outside the band14,316
Share outside the band74.96%
VerdictDisagrees: misses the agreement a release is held to
Points drawn2,089
Largest relative deviation+2,187,336.77%
Activity with largest deviationmarket for land tenure, arable land, measured as carbon net primary productivity, annual crop
Published referenceecoinvent 3.11_cutoff_cumulative_lcia_xlsx.7z
ecoinvent 3.11 cut-off, climate change: fossil
Each point is one activity: what ecoinvent 3.11 cut-off published for climate change: fossil (kg CO2-Eq), against what VoLCA computes from the same EcoSpold 2 source under the publisher's own EF v3.1 factors. The black line is equality and the grey band is 1%. 19,099 activities were compared; 14,316 fall outside the band, more than a picture can hold, so 1,910 of the 19,099 are drawn, evenly spaced over the published value whichever side of the band they fall, and the 179 of the 200 farthest from equality that this walk missed are added. Where several fall on one spot, at most three markers are drawn there, since a fourth would not darken it. Median ratio 1.0305, 74.96% outside the band. This misses the agreement a release is held to: at most 5% of activities outside the band and a median ratio inside it.