BT Group plc scores 2 points higher than Vodafone Group Plc on SINK's sustainability index.
BT Group plc is more sustainable according to SINK's open sustainability index, scoring 55/100 vs Vodafone Group Plc's 53/100 — a difference of 2 points.
BT Group plc scores 55/100 on the SINK sustainability index (Making progress). BT Group demonstrates credible climate leadership backed by SBTi validation and third-party assurance across Scope 1, 2, and 3. Operational emissions down 55% since 2017. Weak spots: nature impact remains largely unmeasured, water stewardship absent, and FY25 total emissions rose despite methodology improvements.
Vodafone Group Plc scores 53/100 on the SINK sustainability index (Making progress). Vodafone has cut operational emissions 84% since FY20 and validates targets through SBTi, placing it among telecom leaders. Scope 3 emissions remain volatile despite recent declines, nature disclosure is minimal without TNFD alignment, and trade association memberships show misalignment with climate policy—gaps that prevent a higher rating.
Both companies are rated on the same 10-question SINK rubric: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water, emissions trajectory, science-based targets, transparency, and controversies. Scores are 0–100, based on public data, and fully reproducible.
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