WORLD MATERIALS CENTER
Recycling needs a whole-life view
A circularity claim should explain its boundary and the evidence behind it.
RESEARCH BRIEF · 9 NOVEMBER 2026
The evidence
worldsteel describes life cycle assessment as an approach that considers impacts across manufacture, use and end of life. Comparing a single stage can shift impacts elsewhere. This is an industry association’s methodological perspective, not a neutral ranking of competing materials.
What it means for a brief
A comparison needs a shared function, expected life, system boundary and data quality. The same mass of two different materials does not necessarily provide the same service.
A practical next step
Keep collected feedstock, usable output and verified product content separate. Our Feedstock Balance is a simple physical scenario; it does not calculate a life cycle impact or certify a recycled-content claim.
Source: WS — Life cycle assessment in the steel industry. Undated; checked 9 November 2026. Accessed 9 November 2026.
Interpretation is editorial. Sources are dated snapshots, not a live market feed.
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