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2026

James C. Zachos publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where James C. Zachos sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

James C. Zachos D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where James C. Zachos sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Earth Science in United States Leader Award
  • 2025 - Research.com Earth Science in United States Leader Award
  • 2018 - Royal Netherlands Academy of Arts and Sciences
  • 2017 - Member of the National Academy of Sciences
  • 2011 - Fellow of the American Academy of Arts and Sciences
  • 2008 - Fellow of American Geophysical Union (AGU)

Overview

James C. Zachos is affiliated with the University of California, Santa Cruz in the United States. Their research primarily focuses on Earth and Planetary Sciences, with a significant concentration in several related subfields.

The main subfields of study include Atmospheric Science, Ocean Engineering, Oceanography, Paleontology, and Ecology. These areas reflect the scope of their investigation into Earth's climatic and geological history.

The key topics covered in their work are:

  • Geology and Paleoclimatology Research
  • Paleontology and Stratigraphy of Fossils
  • Drilling and Well Engineering
  • Isotope Analysis in Ecology
  • Reservoir Engineering and Simulation Methods
  • Methane Hydrates and Related Phenomena
  • Marine and Coastal Ecosystems

Zachos has contributed significantly to scientific literature, with recent papers published in prestigious journals. Selected recent works include:

  • "An astronomically dated record of Earth's climate and its predictability over the last 66 million years," 2020, Science
  • "On impact and volcanism across the Cretaceous-Paleogene boundary," 2020, Science
  • "Global warming in the pipeline," 2023, Oxford Open Climate Change
  • "Toward a Cenozoic history of atmospheric CO 2," 2023, Science
  • "Ice retreat in Wilkes Basin of East Antarctica during a warm interglacial," 2020, Nature

Their frequent co-authors include Isabella Raffi, Jan Backman, Paul N. Pearson, Ursula Röhl, and Timothy J. Bralower, with multiple joint publications.

Zachos has published extensively in venues such as Zenodo (CERN European Organization for Nuclear Research), Paleoceanography and Paleoclimatology, Abstracts with programs - Geological Society of America, OPAL (Open@LaTrobe) from La Trobe University, and Science.

Recognition of their scientific contributions is reflected in several awards, including:

  • Royal Netherlands Academy of Arts and Sciences, 2018
  • Member of the National Academy of Sciences, 2017
  • Fellow of the American Academy of Arts and Sciences, 2011
  • Fellow of American Geophysical Union (AGU), 2008

Best Publications

  • Trends, Rhythms, and Aberrations in Global Climate 65 Ma to Present

    James Zachos;Mark Pagani;Lisa Sloan;Ellen Thomas;Ellen Thomas

  • An early Cenozoic perspective on greenhouse warming and carbon-cycle dynamics

    James C. Zachos;Gerald R. Dickens;Richard E. Zeebe

  • Target atmospheric CO2: Where should humanity aim?

    James Hansen;Makiko Sato;Pushker Kharecha;David Beerling

  • An astronomically dated record of Earth's climate and its predictability over the last 66 million years.

    Thomas Westerhold;Norbert Marwan;Norbert Marwan;Anna Joy Drury;Anna Joy Drury;Diederik Liebrand

  • Rapid acidification of the ocean during the Paleocene-Eocene thermal maximum.

    James C. Zachos;Ursula Röhl;Stephen A. Schellenberg;Appy Sluijs

  • The Geological Record of Ocean Acidification

    Bärbel Hönisch;Andy Ridgwell;Daniela N. Schmidt;Ellen Thomas;Ellen Thomas

  • Marked Decline in Atmospheric Carbon Dioxide Concentrations During the Paleogene

    Mark Pagani;James C. Zachos;James C. Zachos;James C. Zachos;Katherine H. Freeman;Katherine H. Freeman;Katherine H. Freeman;Brett Tipple;Brett Tipple;Brett Tipple

  • Assessing "dangerous climate change": required reduction of carbon emissions to protect young people, future generations and nature.

    James E. Hansen;Pushker A. Kharecha;Pushker A. Kharecha;Makiko H. Sato;Valerie Masson-Delmotte

  • Evolution of Early Cenozoic marine temperatures

    James C. Zachos;Lowell D. Stott;Kyger C. Lohmann

  • A Transient Rise in Tropical Sea Surface Temperature During the Paleocene-Eocene Thermal Maximum

    James C. Zachos;Michael W. Wara;Steven Bohaty;Margaret L. Delaney

  • Correlation between isotope records in marine and continental carbon reservoirs near the Palaeocene/Eocene boundary

    Paul L. Koch;James C. Zachos;Philip D. Gingerich

  • Abrupt climate change and transient climates during the Paleogene: a marine perspective.

    James C. Zachos;Kyger C. Lohmann;James C. G. Walker;Sherwood W. Wise

  • Astronomical pacing of late Palaeocene to early Eocene global warming events

    Lucas J. Lourens;Appy Sluijs;Dick Kroon;James C. Zachos

  • Climate response to orbital forcing across the Oligocene-Miocene boundary.

    James C. Zachos;Nicholas J. Shackleton;Justin S. Revenaugh;Heiko Pälike

  • High‐resolution (104 years) deep‐sea foraminiferal stable isotope records of the Eocene‐Oligocene climate transition

    James C. Zachos;Terrence M. Quinn;Karen A. Salamy

  • On the duration of the Paleocene-Eocene thermal maximum (PETM)

    Ursula Röhl;Thomas Westerhold;Timothy J. Bralower;James C. Zachos

  • Carbon dioxide forcing alone insufficient to explain Palaeocene–Eocene Thermal Maximum warming

    Richard E. Zeebe;James C. Zachos;Gerald R. Dickens

  • Significant Southern Ocean warming event in the late middle Eocene

    Steven M. Bohaty;James C. Zachos

  • Extreme warming of mid-latitude coastal ocean during the Paleocene-Eocene Thermal Maximum: Inferences from TEX86 and isotope data

    J.C. Zachos;S. Schouten;S. Bohaty;T. Quattlebaum

  • Early Cenozoic decoupling of the global carbon and sulfur cycles

    A. C. Kurtz;L. R. Kump;M. A. Arthur;J. C. Zachos

  • The geological record of ocean acidification

    B. Hoenisch;A. J. Ridgwell;E. Thomas;J. C. Zachos

Frequent Co-Authors

Thomas Westerhold
Thomas Westerhold University of Bremen
Ellen Thomas
Ellen Thomas Yale University
Isabella Raffi
Isabella Raffi University of Chieti-Pescara
Steven M Bohaty
Steven M Bohaty University of Southampton
Appy Sluijs
Appy Sluijs Utrecht University
Roy H Wilkens
Roy H Wilkens University of Hawaiʻi Sea Grant
Lucas Joost Lourens
Lucas Joost Lourens Utrecht University
Richard E. Zeebe
Richard E. Zeebe University of Hawaii at Manoa
Timothy J. Bralower
Timothy J. Bralower Pennsylvania State University
Dick Kroon
Dick Kroon University of Edinburgh

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