2023
DOI: 10.1098/rsta.2023.0081
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Making the case for an International Decade of Radiocarbon

Timothy I. Eglinton,
Heather D. Graven,
Peter A. Raymond
et al.

Abstract: Radiocarbon ( 14 C) is a critical tool for understanding the global carbon cycle. During the Anthropocene, two new processes influenced 14 C in atmospheric, land and ocean carbon reservoirs. First, 14 C-free carbon derived from fossil fuel burning has diluted 14 C, at rates that have accelerated with time. Second, ‘bomb’ 14 C produced by atmospheric nuclear weapon tests in the mid-twentieth c… Show more

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Cited by 4 publications
(3 citation statements)
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References 52 publications
(103 reference statements)
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“…A theoretical closed-system mixing between modern DIC derived from soil CO 2 ( 14 C $ 120 pmC; δ 13 C $ 21‰ VPDB) and marine carbonate rock DIC ( 14 C $ 0 pmC; δ 13 C $ 0‰) is represented by a mixing line. The 14 C activity of soil CO 2 is defined as >100 pmC because of 14 C contributed by atmospheric nuclear testing (Eglinton et al, 2023), while marine carbonate is considered "radiocarbon-dead" because it is orders of magnitude older than the 14 C half-life (5730 years).…”
Section: Radioactive Isotopesmentioning
confidence: 99%
“…A theoretical closed-system mixing between modern DIC derived from soil CO 2 ( 14 C $ 120 pmC; δ 13 C $ 21‰ VPDB) and marine carbonate rock DIC ( 14 C $ 0 pmC; δ 13 C $ 0‰) is represented by a mixing line. The 14 C activity of soil CO 2 is defined as >100 pmC because of 14 C contributed by atmospheric nuclear testing (Eglinton et al, 2023), while marine carbonate is considered "radiocarbon-dead" because it is orders of magnitude older than the 14 C half-life (5730 years).…”
Section: Radioactive Isotopesmentioning
confidence: 99%
“…Since air-sea 14 C fluxes are a strong influence on ∆ 14 C gradients in atmospheric CO 2 , oceanic data are needed for studies of atmospheric ∆ 14 C that, for example, aim to quantify fossil fuel emissions (Basu et al, 2020). As noted by Eglinton et al (2023), there is a need for sustaining and building up observation networks for ∆ 14 C measurement across carbon reservoirs to understand the global carbon cycle. In addition, predicted future outgassing of CFCs will influence CFC lifetimes and stratospheric ozone, as well as detection of illegal CFC emissions (Wang et al, 2021).…”
Section: 1029/2023jc020387mentioning
confidence: 99%
“…The first paper of the theme issue, an Opinion Piece by Eglinton et al [ 1 ], seeks to highlight the value of 14 C for understanding Anthropocene carbon cycle change, and to propose an intense phase of coordinated and sustained research activity that harnesses the full potential of radiocarbon.…”
Section: Contents Of the Theme Issuementioning
confidence: 99%