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arXiv 2409.04054astro-ph.IM
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天文观测台的碳足迹

The carbon footprint of astronomical observatories

Jürgen Knödlseder

AI总结:

本文评估天文观测台及天文研究的碳足迹与减排途径,指出需通过研究活动的系统性变革实现1.5°C或2°C气候目标。

摘要:

天文研究的碳足迹正成为一个日益热门的议题。通过对现有文献的比较,我们推断,从事天文学工作的普通人的年度人均碳足迹为数十吨二氧化碳当量。天文观测台对天文学的碳足迹贡献显著,我们考察了相关的温室气体排放来源以及减少这些排放的杠杆手段。与其他科学领域的比较表明,天文学并不是唯一一个需要大幅削减其研究设施碳足迹的领域。我们表明,将全球变暖限制在1.5°C或2°C意味着温室气体减排只有通过天文研究活动的系统性变革才能实现,并且我们认为,如果想让地球保持宜居,就需要一种开展天文研究的新叙事。

英文摘要:

The carbon footprint of astronomical research is an increasingly topical issue. From a comparison of existing literature, we infer an annual per capita carbon footprint of several tens of tonnes of CO$_2$ equivalents for an average person working in astronomy. Astronomical observatories contribute significantly to the carbon footprint of astronomy, and we examine the related sources of greenhouse gas emissions as well as lever arms for their reduction. Comparison with other scientific domains illustrates that astronomy is not the only field that needs to accomplish significant carbon footprint reductions of their research facilities. We show that limiting global warming to 1.5°C or 2°C implies greenhouse gas emission reductions that can only be reached by a systemic change of astronomical research activities, and we argue that a new narrative for doing astronomical research is needed if we want to keep our planet habitable.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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