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      Changing behaviour for net zero 2050

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      The BMJ
      BMJ Publishing Group Ltd.

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          Abstract

          Theresa Marteau and colleagues argue for rapid, radical changes to the infrastructure and pricing systems that currently support unhealthy unsustainable behaviour

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          Most cited references64

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          Food in the Anthropocene: the EAT–Lancet Commission on healthy diets from sustainable food systems

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            Reducing food’s environmental impacts through producers and consumers

            Food's environmental impacts are created by millions of diverse producers. To identify solutions that are effective under this heterogeneity, we consolidated data covering five environmental indicators; 38,700 farms; and 1600 processors, packaging types, and retailers. Impact can vary 50-fold among producers of the same product, creating substantial mitigation opportunities. However, mitigation is complicated by trade-offs, multiple ways for producers to achieve low impacts, and interactions throughout the supply chain. Producers have limits on how far they can reduce impacts. Most strikingly, impacts of the lowest-impact animal products typically exceed those of vegetable substitutes, providing new evidence for the importance of dietary change. Cumulatively, our findings support an approach where producers monitor their own impacts, flexibly meet environmental targets by choosing from multiple practices, and communicate their impacts to consumers.
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              The Global Syndemic of Obesity, Undernutrition, and Climate Change: The Lancet Commission report

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                Author and article information

                Contributors
                Role: professor
                Role: professor
                Role: researcher
                Journal
                BMJ
                BMJ
                BMJ-UK
                bmj
                The BMJ
                BMJ Publishing Group Ltd.
                0959-8138
                1756-1833
                2021
                07 October 2021
                : 375
                : n2293
                Affiliations
                [1 ]Department of Public Health and Primary Care, Behaviour and Health Research Unit, University of Cambridge, UK
                [2 ]Warwick Business School, University of Warwick, UK
                [3 ]Cambridge Institute for Sustainability Leadership, University of Cambridge UK
                Author notes
                Correspondence to: T M Marteau tm388@ 123456cam.ac.uk
                Article
                mart067953
                10.1136/bmj.n2293
                8493657
                34615652
                6854e0f1-df32-45e3-98ba-abd0d2c6d483
                © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

                This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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