Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions

Abstract Reducing motorized transport and increasing active transport (i.e. transport by walking, cycling and other active modes) may reduce greenhouse gas (GHG) emissions and improve health. But, active modes of transport are not zero emitters. We aimed to quantify GHG emissions from food productio...

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Autores principales:	Anja Mizdrak, Linda J Cobiac, Christine L Cleghorn, Alistair Woodward, Tony Blakely
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/85f42b0901c74cad9e0d8bef46ba4d97
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spelling	oai:doaj.org-article:85f42b0901c74cad9e0d8bef46ba4d972021-12-02T17:52:13ZFuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions10.1038/s41598-020-66170-y2045-2322https://doaj.org/article/85f42b0901c74cad9e0d8bef46ba4d972020-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66170-yhttps://doaj.org/toc/2045-2322Abstract Reducing motorized transport and increasing active transport (i.e. transport by walking, cycling and other active modes) may reduce greenhouse gas (GHG) emissions and improve health. But, active modes of transport are not zero emitters. We aimed to quantify GHG emissions from food production required to fuel extra physical activity for walking and cycling. We estimate the emissions (in kgCO2e) per kilometre travelled for walking and cycling from energy intake required to compensate for increased energy expenditure, and data on food-related GHG emissions. We assume that persons who shift from passive modes of transport (e.g. driving) have increased energy expenditure that may be compensated with increased food consumption. The GHG emissions associated with food intake required to fuel a kilometre of walking range between 0.05 kgCO2e/km in the least economically developed countries to 0.26 kgCO2e/km in the most economically developed countries. Emissions for cycling are approximately half those of walking. Emissions from food required for walking and cycling are not negligible in economically developed countries which have high dietary-related emissions. There is high uncertainty about the actual emissions associated with walking and cycling, and high variability based on country economic development. Our study highlights the need to consider emissions from other sectors when estimating net-emissions impacts from transport interventions.Anja MizdrakLinda J CobiacChristine L CleghornAlistair WoodwardTony BlakelyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-6 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Anja Mizdrak Linda J Cobiac Christine L Cleghorn Alistair Woodward Tony Blakely Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
description	Abstract Reducing motorized transport and increasing active transport (i.e. transport by walking, cycling and other active modes) may reduce greenhouse gas (GHG) emissions and improve health. But, active modes of transport are not zero emitters. We aimed to quantify GHG emissions from food production required to fuel extra physical activity for walking and cycling. We estimate the emissions (in kgCO2e) per kilometre travelled for walking and cycling from energy intake required to compensate for increased energy expenditure, and data on food-related GHG emissions. We assume that persons who shift from passive modes of transport (e.g. driving) have increased energy expenditure that may be compensated with increased food consumption. The GHG emissions associated with food intake required to fuel a kilometre of walking range between 0.05 kgCO2e/km in the least economically developed countries to 0.26 kgCO2e/km in the most economically developed countries. Emissions for cycling are approximately half those of walking. Emissions from food required for walking and cycling are not negligible in economically developed countries which have high dietary-related emissions. There is high uncertainty about the actual emissions associated with walking and cycling, and high variability based on country economic development. Our study highlights the need to consider emissions from other sectors when estimating net-emissions impacts from transport interventions.
format	article
author	Anja Mizdrak Linda J Cobiac Christine L Cleghorn Alistair Woodward Tony Blakely
author_facet	Anja Mizdrak Linda J Cobiac Christine L Cleghorn Alistair Woodward Tony Blakely
author_sort	Anja Mizdrak
title	Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
title_short	Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
title_full	Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
title_fullStr	Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
title_full_unstemmed	Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
title_sort	fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/85f42b0901c74cad9e0d8bef46ba4d97
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Fuelling walking and cycling: human powered locomotion is associated with non-negligible greenhouse gas emissions

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