Die andere Hällfte tut überhaupt nix

Eine immerhin 449 Firmen umfassende Untersuchung von Programmen unternehmerischer Nachhaltigkeit (corporate sustainability) in den Branchen Ernährung, Bekleidung und Holzwirtschaft, zeigt deren eng begrenzte Wirksamkeit (Science Daily):

...about half use some form of sustainable sourcing practice ranging from third-party certification of production standards to environmental training for suppliers (...)
More than 70 percent of sustainable sourcing practices cover only a subset of input materials for a given product. For example, a company might use recycled materials for the packaging of a product, but leave the remainder of a product's upstream impact unaddressed. (...)
Almost all sustainable sourcing practices address only a single tier in the supply chain, usually first-tier suppliers, such as the textile factories that sew T-shirts. Often, the remaining processes, from dying the cloth to growing the cotton, remain unaddressed. (...)
More than a quarter of sustainable sourcing practices apply to only a single product line.
For example, a company may use Fair Trade certification for only one type of chocolate bar among many that it sells.