Stanford researchers find major food retailer's sustainability program drives farmers' environmental practices

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When grocery stores tout sustainable products, consumers may take their claims at face value. Yet few studies have analyzed whether or not companies who claim to improve the sustainability of their products are actually changing practices in their supply chains.

When grocery stores tout sustainable products, consumers may take their claims at face value. Yet few studies have analyzed whether or not companies who claim to improve the sustainability of their products are actually changing practices in their supply chains.

In a new study published online Dec. 22 in the journal Global Environmental Change, Stanford researchers carried out one of the first analyses of a company-led sustainability program in the food and agriculture space. Studying the agricultural supply chain of Woolworths Holding Ltd. (Woolworths), one of the five largest supermarket chains in South Africa, they found that its Farming for the Future program drove increased adoption of environmental practices at the farm level. Agriculture is one of the largest global environmental polluters, driving deforestation and contributing an estimated 30 percent of total greenhouse gas emissions.

“If indeed these company-led policies are effective and able to transform their entire supply chains, then they can potentially transform land-use practices worldwide and have a very positive impact on the environment,” said study co-author Eric Lambin, the George and Setsuko Ishiyama Provostial Professor in the School of Earth, Energy & Environmental Sciences (Stanford Earth). “Having this kind of evaluation done by independent researchers increases the confidence of the public in these private programs.”

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Image: Leafy green vegetables are produced in a growing facility in Gauteng Province, South Africa. A new study shows a company-led sustainability program at a major food retailer in South Africa drove increased adoption of environmental practices at the farm level.  CREDIT: Katherine Smit