Laboratory of Analysis of the Environmental Impact of Activities, Products and Projects, BCO2Engineering, 33200 Bordeaux, France.
BillaTraining SAS, 94140 Alfortville, France.
Int J Environ Res Public Health. 2021 Mar 9;18(5):2769. doi: 10.3390/ijerph18052769.
Marathon running leaves a significant carbon footprint regarding CO emissions; for example, 37 percent of New York Marathon participants travel internationally to New York. The aim of this study is to estimate the CO footprint of a person training and competing in a marathon; we will also propose methods to minimize the CO footprint because of transportation. In addition, we also examine the influence of food practices and hygiene on training and racing a marathon.
We estimated the annual carbon footprint of one person taking part in a marathon. We considered all training, racing, and travelling (local and international) for one person (we are going to give him the first name of "Henri"), and then compared his CO footprint with his colleagues playing tennis and soccer. The excess CO footprint whilst running and for shoes, clothing, books, magazines, insurance, travel, hygiene, laundry, and resources for electronics and additional food consumed were calculated. For competitions, we estimated and compared the CO emission from transportation to national vs. international marathon (New York).
We estimated that our runner emitted 4.3 tons of CO equivalent (COe), including all greenhouse gases. A transatlantic flight to New York corresponded to 3.5 tons CO, which is 83% of the annual carbon footprint of an average French citizen which is about 11 tons COe/year. This leads to a sudden 40% increase in Henri's annual carbon footprint.
By focusing on the additional carbon footprint from one year of marathon training and racing, and traveling locally versus internationally, this sport still has a potentially significant carbon footprint that runners and race organizers ought to consider. We wanted to answer a growing question of marathon runners who are wondering about the carbon footprint of their sports practice in following with a new environmentalist trend that considers not traveling anymore to participate in marathons and to stay local. However, the representativeness in the selection of calculation objectives is very low. There is no need for statistics since this study is a theoretical simulation of traditional training and competition practices of marathon runners.
马拉松跑步会产生大量的二氧化碳排放，例如，37%的纽约马拉松参赛者从国际到纽约旅行。本研究旨在估计一个人训练和参加马拉松比赛的二氧化碳足迹；我们还将提出减少因交通而产生的二氧化碳足迹的方法。此外，我们还研究了饮食和卫生习惯对训练和参加马拉松比赛的影响。
我们估计了一个参加马拉松比赛的人的年度碳足迹。我们考虑了一个人的所有训练、比赛和旅行（本地和国际）（我们将给他取名为“亨利”），然后将他的二氧化碳足迹与打网球和踢足球的同事进行了比较。跑步和鞋子、服装、书籍、杂志、保险、旅行、卫生、洗衣以及电子产品和额外食物消耗的资源所产生的多余二氧化碳排放量都进行了计算。对于比赛，我们估计并比较了从国内到国际马拉松（纽约）的交通排放的二氧化碳排放量。
我们估计我们的跑步者排放了 4.3 吨二氧化碳当量（COe），包括所有温室气体。一次跨大西洋飞往纽约的航班对应 3.5 吨二氧化碳，占法国普通公民每年 11 吨二氧化碳当量的 83%。这导致亨利的年度碳足迹突然增加了 40%。
通过关注一年马拉松训练、比赛和旅行以及本地与国际旅行的额外碳足迹，这项运动仍然具有潜在的重大碳足迹，跑步者和赛事组织者应该考虑这一点。我们想回答越来越多马拉松运动员的问题，他们想知道他们的运动实践的碳足迹，以遵循一种新的环保主义趋势，即不再旅行参加马拉松比赛，而是留在当地。然而，计算目标的代表性非常低。由于这项研究是对马拉松运动员传统训练和比赛实践的理论模拟，因此不需要进行统计。
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