了解长途旅行在客运碳排放中的巨大作用

IF 49.7 1区 材料科学 Q1 ENERGY & FUELS Nature Energy Pub Date : 2024-07-02 DOI:10.1038/s41560-024-01561-3
Zia Wadud, Muhammad Adeel, Jillian Anable
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引用次数: 0

摘要

长途客运旅行在去碳化方面很少受到关注。在这里,我们描述了英格兰长途旅行模式的特点,并探讨了其对旅客旅行碳排放和去碳化的重要性。我们发现,长途旅行(单程 50 英里)仅占个人出行的 2.7%,但却占客运旅行里程的 61.3%,占温室气体(二氧化碳当量)排放量的 69.3%,这凸显了长途旅行对客运脱碳的重要性。随着时间的推移,人均长途旅行量也在不断增加,其趋势与短途旅行相反。以休闲和社交为目的的飞行是长途里程和排放量的最大来源,而且这些里程也在增加。总体而言,人均旅行排放量从 2007 年开始缓慢下降,但仍高于 1997 年。我们提出了一个新的指标--减排敏感度(减排百分比/改变的出行百分比)--以了解与出行需求相关的减少温室气体排放措施的效率。与城市旅行相比,长途旅行--尤其是飞行--的减排灵敏度要高出几个数量级,这表明有必要采取相称的政策方法。
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Understanding the large role of long-distance travel in carbon emissions from passenger travel
Long-distance passenger travel has received rather sparse attention for decarbonization. Here we characterize the long-distance travel pattern in England and explore its importance on carbon emissions from and decarbonization of passenger travel. We find that only 2.7% of a person’s trips are for long distance travel (>50 miles one-way), but they account for 61.3% of the miles and 69.3% of the greenhouse gas (CO2 equivalent) emissions from passenger travel, highlighting its importance for decarbonizing passenger transport. Long-distance travel per person has also been increasing over time, trending in the opposite direction to shorter-distance travel. Flying for leisure and social purposes are the largest contributors to long distance miles and emissions, and these miles are also increasing. Overall, per capita travel emissions have started decreasing slowly from 2007, but are still higher than in 1997. We propose a new metric—emissions reduction sensitivity (% emission reduced/% trips altered)—to understand the efficiency of travel demand related initiatives to reduce greenhouse gas emissions. Long-distance travel—especially flying—can offer orders of magnitude larger emissions reduction sensitivity compared with urban travel, which suggests that a proportionate policy approach is necessary. Decarbonization of transport is critical for emissions reduction goals, but understanding long-distance passenger travel patterns remains difficult. This study combines different travel surveys in England to explore long-distance travel and its oversized impact on emissions, proposing a new metric to examine decarbonization potential.
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来源期刊
Nature Energy
Nature Energy Energy-Energy Engineering and Power Technology
CiteScore
75.10
自引率
1.10%
发文量
193
期刊介绍: Nature Energy is a monthly, online-only journal committed to showcasing the most impactful research on energy, covering everything from its generation and distribution to the societal implications of energy technologies and policies. With a focus on exploring all facets of the ongoing energy discourse, Nature Energy delves into topics such as energy generation, storage, distribution, management, and the societal impacts of energy technologies and policies. Emphasizing studies that push the boundaries of knowledge and contribute to the development of next-generation solutions, the journal serves as a platform for the exchange of ideas among stakeholders at the forefront of the energy sector. Maintaining the hallmark standards of the Nature brand, Nature Energy boasts a dedicated team of professional editors, a rigorous peer-review process, meticulous copy-editing and production, rapid publication times, and editorial independence. In addition to original research articles, Nature Energy also publishes a range of content types, including Comments, Perspectives, Reviews, News & Views, Features, and Correspondence, covering a diverse array of disciplines relevant to the field of energy.
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