BT Group plc sustainability score: 42/100

FY25 Scope 1: 146,600 tCO₂e; Scope 2 location-based: 502,974 tCO₂e. LRQA assured to AA1000AS v3 with granular breakdowns by source and multi-year comparators. 52% absolute reduction since FY17 baseline documented. Location-based methodology shift disclosed transparently. Score constrained by 47% grid electricity remaining outside PPA coverage.

FY25 Scope 3: 2,853,536 tCO₂e across 11 of 15 GHG Protocol categories. Largest: Purchased Goods & Services at 1,862,225 tCO₂e. Suppliers representing 63% of emissions report to CDP. Mandatory 20% environmental weighting in sourcing over £2m. SBTi 42% reduction target by 2031. Gap: 25% achieved vs target; Categories 14–15 absent.

Scope 1+2 declined 4.5% YoY (FY24–25) and 52% cumulatively since FY17. Scope 3 fell from 3.24M tCO₂e (FY22) to 2.85M (FY25)—genuine multi-year downtrend. 90% operational reduction target by 2031 requires 38 percentage points in six years. Scope 3 at 25% of 42% target risks delivery.

BT abandoned unbundled renewable certificates citing additionality concerns after Cornwall Insight review. PPAs now cover 34% UK demand; contractual renewable agreements cover additional volume. FY25 reports 53% of total energy from renewable sources—down from prior near-100% claim reliant on RECs. 47% non-renewable share remains material.

Biodiversity placed below materiality threshold in FY25 double materiality assessment despite 6,000+ UK sites and copper mining in supply chain. TNFD pilot work begun FY23 but no formal disclosure. Swift box programme (70+ boxes) cited as sole restoration activity. No quantified nature footprint, deforestation-free commitment, or verified ecosystem mitigation.

Zero-to-landfill-by-2030 target established. FY24: 92.1% UK recycling/reuse rate; 9.6% global landfill. Equipment circularity: 3,300 tonnes network equipment recycled; 2.4m hubs refurbished (71%); 2,400 tonnes batteries recycled; copper deal targeting ~200,000 tonnes. Mobile take-back 5.2% vs 20% target by 2030. ISO 14001 EMS across seven European countries.

UK water use fell 17% to 1,122,099 m³ in FY25. Self-supply licence across 6,000+ sites enables granular monitoring and leak detection. £10m savings since FY19; 0.5bn litres recovered. No pollution incidents. Waterscan independent oversight. Gap: no watershed-level stewardship programme or independently verified reduction targets.

SBTi-validated near and long-term targets: 90% absolute Scope 1+2 reduction by March 2031 (from FY17); 42% Scope 3 Cat. 1–8 reduction by March 2031; net zero all scopes by March 2041. First-mover SBTi recognition (2017). 52% Scope 1+2 reduction achieved. Constraints: no formal high-quality CDR contract published for post-2031 residuals; Scope 3 pace risk.

Annual ESG Addendum aligned to GRI, SASB, TCFD. LRQA high-level assurance; A-list CDP climate for ten consecutive years. Climate Transition Plan published 2025 (TPT framework). Board-level sustainability committee. Double materiality assessment completed FY24. Gap: executive compensation linkage unclear; biodiversity placed below materiality despite material infrastructure exposure.

No regulatory findings or major NGO campaigns against BT. InfluenceMap rates B- (70–72%) for climate policy engagement: partially aligned with positive direct advocacy (EV100, RE100, Electric Fleets Coalition). Membership in CBI and ICC UK with mixed/misaligned positions. No published audit of trade association alignment. FY25 methodology shift (market to location-based) disclosed transparently.