Evidence map›Paper›PMID 41786743›Full record

ArticleNature communications2026

Pathways to global hydrogen production within planetary boundaries.

Michaël Lejeune, Sami Kara, Michael Zwicky Hauschild, Sareh Shahrabifarahani, Rahman Daiyan

Abstract read
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

5 authors.

Michaël LejeuneSustainability in Manufacturing and Life Cycle Engineering Research Group, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW, Australia.ORCID http://orcid.org/0000-0003-3832-3422
Sami KaraSustainability in Manufacturing and Life Cycle Engineering Research Group, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW, Australia. s.kara@unsw.edu.au.ORCID http://orcid.org/0000-0001-6132-121X
Michael Zwicky HauschildSection for Quantitative Sustainability Assessment (QSA), Department of Environmental and Resource Engineering, Technical University of Denmark, Kongens Lyngby, Denmark. mzha@dtu.dk.ORCID http://orcid.org/0000-0002-8331-7390
Sareh ShahrabifarahaniSustainability in Manufacturing and Life Cycle Engineering Research Group, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW, Australia.
Rahman DaiyanAustralian Research Council, Training Centre for the Global Hydrogen Economy, Sydney, NSW, Australia. r.daiyan@unsw.edu.au.ORCID http://orcid.org/0000-0002-3543-3944

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydrogen is a key lever for decarbonising hard-to-electrify sectors. Mitigation scenarios project an essential role for hydrogen in returning within the climate change planetary boundary. Yet, its planetary footprint remains unclear, particularly when Earth system interactions are considered. Here, we quantify the planetary footprint of global clean hydrogen production using a bottom-up system model coupled with an Earth system interaction model. From 2025 to 2050, even under the most favourable scenarios, global hydrogen production is likely unsustainable, confirming previous findings. We further show that Earth system interactions amplify hydrogen's planetary footprint. While electrolytic and abated fossil production are complementary, bio-based production is an order of magnitude more unsustainable, as opposed to current trends. Our results contrast with the current focus on "green hydrogen" which does not inform on its sustainability. Achieving sustainable hydrogen production will require the reconsideration of viable production pathways, starting with the decarbonisation of existing production capacity.

Identifiers

PMID41786743
PMCPMC13087171

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.