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Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket
Providing consumers with product-specific environmental impact information for food products (ecolabels) may promote more sustainable purchasing, needed to meet global environmental targets. Two UK studies investigated the effectiveness of different ecolabels using an experimental online supermarket...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9632881/ https://www.ncbi.nlm.nih.gov/pubmed/36327277 http://dx.doi.org/10.1371/journal.pone.0272800 |
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author | Potter, Christina Pechey, Rachel Clark, Michael Frie, Kerstin Bateman, Paul A. Cook, Brian Stewart, Cristina Piernas, Carmen Lynch, John Rayner, Mike Poore, Joseph Jebb, Susan A. |
author_facet | Potter, Christina Pechey, Rachel Clark, Michael Frie, Kerstin Bateman, Paul A. Cook, Brian Stewart, Cristina Piernas, Carmen Lynch, John Rayner, Mike Poore, Joseph Jebb, Susan A. |
author_sort | Potter, Christina |
collection | PubMed |
description | Providing consumers with product-specific environmental impact information for food products (ecolabels) may promote more sustainable purchasing, needed to meet global environmental targets. Two UK studies investigated the effectiveness of different ecolabels using an experimental online supermarket platform. Study 1 (N = 1051 participants) compared three labels against control (no label), while Study 2 (N = 4979) tested four designs against control. Study 1 found significant reductions in the environmental impact score (EIS) for all labels compared to control (labels presented: values for four environmental indicators [-3.9 percentiles, 95%CIs: -5.2,-2.6]; a composite score [taking values from A to E; -3.9, 95%CIs: -5.2,-2.5]; or both together [-3.2, 95%CIs: -4.5,-1.9]). Study 2 showed significant reductions in EIS compared to control for A-E labels [-2.3, 95%CIs: -3.0,-1.5], coloured globes with A-E scores [-3.2, 95%CIs:-3.9,-2.4], and red globes highlighting ’worse’ products [-3.2, 95%CIs:-3.9,-2.5]. There was no evidence that green globes highlighting ’better’ products were effective [-0.5, 95%CIs:-1.3,0.2]. Providing ecolabels is a promising intervention to promote the selection of more sustainable products. |
format | Online Article Text |
id | pubmed-9632881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-96328812022-11-04 Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket Potter, Christina Pechey, Rachel Clark, Michael Frie, Kerstin Bateman, Paul A. Cook, Brian Stewart, Cristina Piernas, Carmen Lynch, John Rayner, Mike Poore, Joseph Jebb, Susan A. PLoS One Research Article Providing consumers with product-specific environmental impact information for food products (ecolabels) may promote more sustainable purchasing, needed to meet global environmental targets. Two UK studies investigated the effectiveness of different ecolabels using an experimental online supermarket platform. Study 1 (N = 1051 participants) compared three labels against control (no label), while Study 2 (N = 4979) tested four designs against control. Study 1 found significant reductions in the environmental impact score (EIS) for all labels compared to control (labels presented: values for four environmental indicators [-3.9 percentiles, 95%CIs: -5.2,-2.6]; a composite score [taking values from A to E; -3.9, 95%CIs: -5.2,-2.5]; or both together [-3.2, 95%CIs: -4.5,-1.9]). Study 2 showed significant reductions in EIS compared to control for A-E labels [-2.3, 95%CIs: -3.0,-1.5], coloured globes with A-E scores [-3.2, 95%CIs:-3.9,-2.4], and red globes highlighting ’worse’ products [-3.2, 95%CIs:-3.9,-2.5]. There was no evidence that green globes highlighting ’better’ products were effective [-0.5, 95%CIs:-1.3,0.2]. Providing ecolabels is a promising intervention to promote the selection of more sustainable products. Public Library of Science 2022-11-03 /pmc/articles/PMC9632881/ /pubmed/36327277 http://dx.doi.org/10.1371/journal.pone.0272800 Text en © 2022 Potter et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Potter, Christina Pechey, Rachel Clark, Michael Frie, Kerstin Bateman, Paul A. Cook, Brian Stewart, Cristina Piernas, Carmen Lynch, John Rayner, Mike Poore, Joseph Jebb, Susan A. Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title | Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title_full | Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title_fullStr | Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title_full_unstemmed | Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title_short | Effects of environmental impact labels on the sustainability of food purchases: Two randomised controlled trials in an experimental online supermarket |
title_sort | effects of environmental impact labels on the sustainability of food purchases: two randomised controlled trials in an experimental online supermarket |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9632881/ https://www.ncbi.nlm.nih.gov/pubmed/36327277 http://dx.doi.org/10.1371/journal.pone.0272800 |
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