Evidence map›Paper›PMID 42455895›Full record

ArticleScience advances2026

Anthropogenic perturbations to atmospheric methane reflected in Greenland firn air clumped isotope measurements.

Malavika Sivan, Jiayang Sun, Patricia Martinerie, Maria Elena Popa, James Farquhar, Maarten Krol, Carina van der Veen, Bibhasvata Dasgupta, Mojhgan A Haghnegahdar, Camilla Marie Jensen and 5 more

Abstract read
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In one paragraph

Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Malavika SivanInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.ORCID 0009-0000-5926-0817
Jiayang SunDepartment of Geology, University of Maryland, College Park, MD 20742, USA.ORCID 0000-0001-9736-8511
Patricia MartinerieIGE, Université Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France.ORCID 0000-0002-6820-2296
Maria Elena PopaInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.ORCID 0000-0001-7957-0329
James FarquharDepartment of Geology, University of Maryland, College Park, MD 20742, USA.ORCID 0000-0003-3388-612X
Maarten KrolInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.ORCID 0000-0002-3506-2477
Carina van der VeenInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.ORCID 0000-0001-6827-9616
Bibhasvata DasguptaInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.
Mojhgan A HaghnegahdarDepartment of Geology, University of Maryland, College Park, MD 20742, USA.
Camilla Marie JensenPhysics of Ice Climate and Earth, Niels Bohr Institute, University of Copenhagen, Tagensvej 16, 2200 Copenhagen, Denmark.
Ji-Woong YangLaboratoire des Science du Climat et de l'Environnement, 91191 Gif-sur-Yvette, France.ORCID 0000-0001-8397-9274
Johannes FreitagAlfred-Wegener-Institute, 27570 Bremerhaven, Germany.ORCID 0000-0003-2654-9440
Kévin FourteauIGE, Université Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France.ORCID 0000-0002-9905-2446
Thomas BlunierPhysics of Ice Climate and Earth, Niels Bohr Institute, University of Copenhagen, Tagensvej 16, 2200 Copenhagen, Denmark.ORCID 0000-0002-6065-7747
Thomas RöckmannInstitute for Marine and Atmospheric Research, Utrecht University, 3584 CC Utrecht, Netherlands.ORCID 0000-0002-6688-8968

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ongoing debate over the origin of rising atmospheric methane levels highlights gaps in our understanding of its global budget. To our knowledge, we present the first reconstructed clumped isotopic composition of atmospheric methane dating back to the early 1990s, based on large-volume firn air samples from the Greenland ice cap. Our measurements indicate that atmospheric ∆

Identifiers

PMID42455895
PMCPMC13371891

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.