Rio Tinto scores 3 points higher than Glencore plc on SINK's sustainability index.
Rio Tinto is more sustainable according to SINK's open sustainability index, scoring 20/100 vs Glencore plc's 17/100 — a difference of 3 points.
Glencore plc scores 17/100 on the SINK sustainability index (Significant gaps). Glencore is a massive mining and commodity trader with an enormous operational and supply-chain carbon footprint (416 Mt CO2e annually), minimal renewable energy adoption (3.5%), and a history of bribery convictions. Despite 25% absolute emissions cuts since 2019, the company undermines its own trajectory by acquiring $7 billion in steelmaking coal assets while thermally coal declines. Unvalidated climate targets, active greenwashing allegations, and aggressive climate policy obstruction complete a picture of structural misalignment with decarbonisation.
Rio Tinto scores 20/100 on the SINK sustainability index (Significant gaps). Rio Tinto reports comprehensive operational emissions data but remains the highest Scope 1 & 2 emitter among mining peers globally. The company has no Scope 3 reduction target despite Scope 3 representing 95% of emissions and rising since 2020. Active anti-climate lobbying contradicts public commitments; the Juukan Gorge destruction and multiple regulatory violations expose systemic environmental and cultural harm.
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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