World's Best Scientists 2026 revealed!
Karen O'Brien

Karen O'Brien

D-Index & Metrics

Environmental Sciences

D-Index
67
Citations
38173
World Ranking
1918
National Ranking
21

Karen O'Brien publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Karen O'Brien sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 282 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 129 publications — 30th percentile

30% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

Karen O'Brien D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Karen O'Brien sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 198 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 20 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125 D-Index: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 67 D-Index — 80th percentile

80% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

Karen O'Brien is affiliated with the University of Oslo in Norway. Their research focuses on multiple intersecting fields, primarily within Medicine and associated subfields such as Global and Planetary Change, Management, Monitoring, Policy and Law, Sociology and Political Science, Public Health, Environmental and Occupational Health, and Hepatology.

The scientific topics covered in their work include Sustainability and Climate Change Governance, Climate Change Communication and Perception, Environmental Education and Sustainability, Palliative Care and End-of-Life Issues, Liver Disease and Transplantation, Cancer Survivorship and Care, and Childhood Cancer Survivors' Quality of Life.

Their recent publications reflect a focus on sustainability science and climate-related transformations. The notable recent papers include:

  • Transforming Sustainability Science to Generate Positive Social and Environmental Change Globally, 2020, published in One Earth
  • Getting to the Heart of Transformation, 2021, published in Sustainability Science
  • Beyond "Blah Blah Blah": Exploring the "How" of Transformation, 2022, published in Sustainability Science
  • Teaching Climate Change in the Anthropocene: An Integrative Approach, 2020, published in Anthropocene
  • Fractal Approaches to Scaling Transformations to Sustainability, 2023, published in AMBIO

The most frequent publication venues for Karen O'Brien include Sustainability Science, AMBIO, One Earth, Anthropocene, and JAMA. They have multiple publications in Sustainability Science and AMBIO.

Collaborative work forms a significant part of their research profile. Frequent co-authors include:

  • Areej El-Jawahri (6 collaborations)
  • Vicki A. Jackson (6 collaborations)
  • Michaela Rowland (5 collaborations)
  • Nora Horick (4 collaborations)
  • Michelle S. Diop (4 collaborations)

Karen O'Brien's research integrates multidisciplinary approaches addressing climate change governance, sustainability transformations, communication, and education. Their work also intersects medical topics such as palliative care, liver disease, and cancer survivorship, reflecting a broad and diverse scholarly interest. The combination of environment-focused and health-related research areas underlines a comprehensive approach to global and planetary health challenges.

Best Publications

  • Global Carbon Budget 2016

    Corinne Le Quere;Robbie M. Andrew;Josep G. Canadell;Stephen Sitch

  • Climate change 2007 : impacts, adaptation and vulnerability : Working Group II contribution to the Fourth Assessment Report of the IPCC Intergovernmental Panel on Climate Change

    Tarekegn Abeku;Pamela Abuodha;Francis Adesina;Neil Adger

  • Global Carbon Budget 2015

    C. Le Quéré;R. Moriarty;R. M. Andrew;J. G. Canadell

  • Assessment of adaptation practices, options, constraints and capacity

    WN Adger;S Agrawal;Mmw Mirza;C Conde

  • Cultural dimensions of climate change impacts and adaptation

    W. Neil Adger;Jon Barnett;Katrina Brown;Nadine Marshall

  • Mapping vulnerability to multiple stressors: climate change and globalization in India

    Karen O'Brien;Robin Leichenko;Ulka Kelkar;Henry Venema

  • Double exposure: assessing the impacts of climate change within the context of economic globalization

    Karen L O'Brien;Robin M Leichenko

  • Why different interpretations of vulnerability matter in climate change discourses

    Karen O'brien;Siri Eriksen;Lynn P. Nygaard;Ane Schjolden

  • Global environmental change II: From adaptation to deliberate transformation

    Karen O’Brien

  • Adaptation and transformation

    Mark Pelling;Karen O’Brien;David Matyas

  • When not every response to climate change is a good one: Identifying principles for sustainable adaptation

    Siri Eriksen;Paulina Aldunce;Chandra Sekhar Bahinipati;Rafael D'almeida Martins

  • Environmental Change and Globalization: Double Exposures

    Robin M. Leichenko;Karen L. O'Brien

  • Adapting to Climate Change: Thresholds, Values, Governance

    W. N. Adger;I. Lorenzoni;K. L. O'Brien

  • The Dynamics of Rural Vulnerability to Global Change: The Case of southern Africa

    Robin M. Leichenko;Karen L. O'Brien

  • A values-based approach to vulnerability and adaptation to climate change.

    Karen L. O'Brien;Johanna Wolf

  • Resilience implications of policy responses to climate change

    W. Neil Adger;Katrina Brown;Donald R. Nelson;Fikret Berkes

  • Plausible and desirable futures in the Anthropocene: A new research agenda

    Xuemei Bai;Sander van der Leeuw;Karen O’Brien;Frans Berkhout

  • Ten essentials for action-oriented and second order energy transitions, transformations and climate change research

    Ioan Fazey;Niko Schäpke;Guido Caniglia;James Patterson

  • Vulnerable or Resilient? A Multi-Scale Assessment of Climate Impacts and Vulnerability in Norway

    Karen O'Brien;Linda Sygna;Jan Erik Haugen

  • What's in a word? Conflicting interpretations of vulnerability in climate change research

    Karen O'Brien;Siri E H Eriksen;Ane Schjolden;Lynn P. Nygaard

  • Adapting to Climate Change

    W. Neil Adger;Irene Lorenzoni;Karen L. O'Brien

Frequent Co-Authors

Siri Eriksen
Siri Eriksen Norwegian University of Life Sciences
W. Neil Adger
W. Neil Adger University of Exeter
Jon Barnett
Jon Barnett University of Melbourne
Petra Tschakert
Petra Tschakert Curtin University
Irene Lorenzoni
Irene Lorenzoni University of East Anglia
Will Steffen
Will Steffen Australian National University
Coleen Vogel
Coleen Vogel University of the Witwatersrand
Frans Berkhout
Frans Berkhout King's College London
Ioan Fazey
Ioan Fazey University of York
Frank Biermann
Frank Biermann Utrecht University

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