Tesco has credible operational carbon progress (65% Scope 1&2 reduction since 2015) and SBTi-validated net-zero targets, but Scope 3 — representing 90% of total emissions — shows no documented absolute decline. Water stewardship is unreported. Biodiversity assessment remains pilot-stage. Operational transparency is strong; supply chain footprint accountability is incomplete.
Same formula for every company. No curve. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × ScaleStrongest on Carbon Footprint — Operations and Energy Source (8/10, 8/10). Weakest on Water Impact and Nature & Biodiversity Impact (4/10, 5/10).
12 sources used in this assessment. All publicly available. Each row shows which rubric questions it informed.
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Among the 43 major retail (non-fashion) brands we've scored, Tesco is tied =19th of 43, with 4 others.
Score history begins 29 May 2026.
As Tesco's score updates, the trajectory will appear here.
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Tesco is the UK's largest supermarket retailer by market share, operating over 3,400 stores across the UK and internationally. The company operates a vertically integrated supply chain spanning food production, distribution, and retail. It is a member of RE100 and holds SBTi-validated net-zero commitments, positioning itself as a sustainability-focused grocer in the competitive UK food retail sector.
Global retail peer with analogous Scope 3 tracking challenges and recent SBTi-validated emissions reductions.
View breakdown →Consumer goods company with similar supply chain biodiversity exposure and nature transition disclosures.
View breakdown →Food-sector peer with comparable FLAG emissions targets and supplier engagement-based net-zero commitments.
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