Evidence map›Paper›PMID 34616056›Full record

ArticleNature2021

Hemispheric black carbon increase after the 13th-century Māori arrival in New Zealand.

Joseph R McConnell, Nathan J Chellman, Robert Mulvaney, Sabine Eckhardt, Andreas Stohl, Gill Plunkett, Sepp Kipfstuhl, Johannes Freitag, Elisabeth Isaksson, Kelly E Gleason and 5 more

Abstract readHistorical Article
PubMed Publisher
In one paragraph

Article in Nature, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Pan-European atmospheric lead pollution, enhanced blood lead levels, and cognitive decline from Roman-era mining and smelting.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Historical Southern Hemisphere biomass burning variability inferred from ice core carbon monoxide records.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

15 authors.

Joseph R McConnellDivision of Hydrologic Sciences, Desert Research Institute, Reno, NV, USA. joe.mcconnell@dri.edu.ORCID http://orcid.org/0000-0001-9051-5240
Nathan J ChellmanDivision of Hydrologic Sciences, Desert Research Institute, Reno, NV, USA.
Robert MulvaneyBritish Antarctic Survey, Natural Environment Research Council, Cambridge, UK.
Sabine EckhardtDepartment of Atmospheric and Climate Research, Norwegian Institute for Air Research, Kjeller, Norway.
Andreas StohlDepartment of Meteorology and Geophysics, University of Vienna, Vienna, Austria.
Gill PlunkettSchool of Natural and Built Environment, Queen's University Belfast, Belfast, UK.ORCID http://orcid.org/0000-0003-1014-3454
Sepp KipfstuhlAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany.
Johannes FreitagAlfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany.
Elisabeth IsakssonNorwegian Polar Institute, Fram Centre, Tromsø, Norway.
Kelly E GleasonDepartment of Environmental Science and Management, Portland State University, Portland, OR, USA.
Sandra O BruggerDivision of Hydrologic Sciences, Desert Research Institute, Reno, NV, USA.
David B McWethyDepartment of Earth Sciences, Montana State University, Bozeman, MT, USA.
Nerilie J AbramResearch School of Earth Sciences, Australian National University, Canberra, Australian Capital Territory, Australia.ORCID http://orcid.org/0000-0003-1246-2344
Pengfei LiuSchool of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA.
Alberto J AristarainInstituto Antártico Argentino, Centro Regional de Investigaciones Cientifícas y Teconológicas, Mendoza, Argentina.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

New Zealand was among the last habitable places on earth to be colonized by humans

Indexed as

AtmosphereBiomassFiresHistory, 15th CenturyHistory, 16th CenturyHistory, MedievalHuman ActivitiesHumansNew ZealandSootTasmaniaSoot

Identifiers

What OpenQuestion holds

Textmetadata
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.