NatWest Group scores 2 points higher than Lloyds Banking Group on SINK's sustainability index.
NatWest Group is more sustainable according to SINK's open sustainability index, scoring 40/100 vs Lloyds Banking Group's 38/100 — a difference of 2 points.
Lloyds Banking Group scores 38/100 on the SINK sustainability index (Below expectations). Lloyds has solid operational decarbonisation and renewable energy credentials, but its financed emissions—33 MtCO₂e annually—dwarf these gains. A 3.1:1 fossil fuel to green financing ratio, £16B in fossil fuel lending 2016-2023, and a December 2024 ASA greenwashing ban expose a bank financing climate destruction while reporting progress.
NatWest Group scores 40/100 on the SINK sustainability index (Below expectations). NatWest has cut operational emissions 66% since 2019 and achieved 100% renewable electricity, but undermined these gains by voluntarily withdrawing SBTi validation in 2025 and weakening oil & gas lending policy in February 2026. Fossil fuel financing rose 31% year-on-year; financed emissions remain the dominant unresolved impact.
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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