Sort the Procurement Signals by Trust Level

Sort each sustainability signal by how much procurement confidence it deserves. Strong evidence Partial evidence Greenwash risk Product-level documentation against a recognized third-party standard Published ingredient disclosure and named criteria for the ecolabel Supplier says the product is greener but provides only a one-page marketing summary A proprietary green badge with no published scoring rules Company-wide sustainability report without product-specific evidence A supplier offers lifecycle data but the boundary assumptions are not fully explained yet

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