Both companies are tied at 23/100 on SINK.
Both companies are tied at 23/100 on SINK.
Rio Tinto scores 23/100 on SINK (Significant gaps). Rio Tinto reports comprehensive climate data but its equity-basis emissions rose year on year. Its Scope 1 and 2 cuts rely partly on unbundled renewable certificates; it lacks an overall Scope 3 reduction goal and faces multiple regulatory convictions for water and effluent violations.
BHP scores 23/100 on SINK (Significant gaps). BHP reports comprehensive climate data with verified operational emissions reductions, but Scope 3 emissions—97% of total—lack absolute reduction targets. The 2015 Samarco dam disaster killed 19 people and contaminated 600km of river; BHP faces £36 billion UK litigation. Industry association misalignment on climate policy undermines stated commitments.
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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