EcoSpold 2 · Calculation comparison

ecoinvent 3.11 cut-off, climate change: fossil (excl. biogenic CO2, incl. SLCFs)

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: 2026-09-18

Comparison measurements and reference
Database	ecoinvent 3.11 cut-off
Source format	EcoSpold 2
Impact method collection	IPCC 2021
Impact category	climate change: fossil (excl. biogenic CO2, incl. SLCFs)
Unit	kg CO2-Eq
Activities compared	19,099
Median ratio (VoLCA / published)	1.0305
Comparison band	1%
Activities outside the band	14,317
Share outside the band	74.96%
Verdict	Disagrees: misses the agreement a release is held to
Points drawn	2,092
Largest relative deviation	+1,952,169.46%
Activity with largest deviation	market for land tenure, arable land, measured as carbon net primary productivity, annual crop
Published reference	ecoinvent 3.11_cutoff_cumulative_lcia_xlsx.7z

Each point is one activity: what ecoinvent 3.11 cut-off published for climate change: fossil (excl. biogenic CO2, incl. SLCFs) (kg CO2-Eq), against what VoLCA computes from the same EcoSpold 2 source under the publisher's own IPCC 2021 factors. The black line is equality and the grey band is 1%. 19,099 activities were compared; 14,317 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 182 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.