Climate Change and Diet

45 Pages Posted: 7 Jul 2020

See all articles by Neha Bose

Neha Bose

University of Warwick

Thomas Hills

University of Warwick

Daniel Sgroi

University of Warwick - Department of Economics


Though many in the general public are concerned about climate change, most are unaware that agriculture and food production accounts for about one quarter of aggregate green house emissions and therefore, diet change is one of the most effective ways that individuals can reduce their climate impact. To investigate how best to communicate this, we present the results of a pre-registered randomised control trial, involving 1220 subjects, exploring six different information interventions. Our findings indicate that the most influential interventions are based on scientific knowledge and efficacy salience. These effects are mediated by prior beliefs and individual characteristics. Providing information on the health impact of a plant-based diet was most effective for individuals with pre-existing health concerns. The greatest resistance to this information was associated with motivated reasoning around meat consumption: the more meat a participant consumed the less they reported knowing about the relationship between diet and climate before the study, the more resistant they were to new information demonstrating that relationship, the lower their efficacy beliefs around climate change, and the more likely they were to take moral offence at being informed. Our results suggest that while many people are open to dietary change and are responsive to scientific evidence, the largest potential for impact between diet and climate may be in overcoming pre-existing biases associated with sacred values around meat consumption.

JEL Classification: Q54, D91, I12, C90

Suggested Citation

Bose, Neha and Hills, Thomas and Sgroi, Daniel, Climate Change and Diet. Available at SSRN: or

Neha Bose (Contact Author)

University of Warwick

Thomas Hills

University of Warwick ( email )

Gibbet Hill Rd.
Coventry, West Midlands CV4 8UW
United Kingdom

Daniel Sgroi

University of Warwick - Department of Economics ( email )

Coventry CV4 7AL
United Kingdom

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