Both companies are tied at 27/100 on SINK's sustainability index.
Both companies are tied at 27/100 on SINK's sustainability index.
Walmart scores 27/100 on the SINK sustainability index (Significant gaps). Walmart's sustainability record shows rising absolute emissions across all scopes despite intensity improvements, missed 2025 and 2030 targets, and supply chain accountability gaps. Renewable energy remains below 50%, deforestation commitments lack verified delivery, and trade group lobbying contradicts climate claims. Scale and performance trajectory are heading backward.
Amazon.com scores 27/100 on the SINK sustainability index (Significant gaps). Amazon reports comprehensive climate data but absolute emissions rose 34% since 2019 despite renewable energy claims. Scope 3 excludes third-party marketplace products, water disclosure was deliberately suppressed, and the company lost its science-based targets credential. A 2025 greenwashing lawsuit over deforestation-linked paper products exemplifies the gap between marketing and supply chain reality.
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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