Companies selling products which contain palm oil need to be upfront about where it comes from, so as to relieve consumers of the burden of making sustainable choices, a UK study says.

Researchers from the University of Cambridge say companies should not rely simply on purchasers’ own awareness of the need to make environmentally responsible decisions, but should publicly disclose the identities of their palm oil suppliers.

Palm oil production causes deforestation, greenhouse gas emissions from peatland conversion, and biodiversity loss, and the oil is found in many products, often without consumers’ knowledge. It is a common ingredient in foods, body products, detergents and biofuels.

Dr. Rosemary Ostfeld is the study’s lead author. “The Roundtable on Sustainable Palm Oil (RSPO) has made efforts to improve the sustainability of palm oil production by creating an environmental certification system for palm oil,” she said.

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“But currently only 19% of palm oil is RSPO-certified. This means the majority that finds its way into products people buy daily is still produced using conventional practices.

We wanted to find out if consumers were actively seeking to make a sustainable choice about palm oil. We also explored what extra efforts governments could make to ensure sustainable palm oil consumption.”

The researchers, whose study is published in the journal Environmental Research Letters, surveyed 1,695 British consumers through the market research company YouGov.

Respondents were asked about their awareness of palm oil and its environmental impact; their recognition of “ecolabels” such as Fairtrade, the Soil Association and RSPO; and which ecolabeled products they included in their weekly household shopping.

Read more at Ecowatch