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Enhanced deep Southern Ocean stratification during the lukewarm interglacials

Lead (Pb) isotopes from a ferromanganese crust reveal that during lukewarm interglacials before the Mid-Brunhes Event, stronger deep Southern Ocean stratification limited CO₂ release, helping keep atmospheric CO₂ levels lower.

Huang Huang
Jan Fietzke
Jimin Yu
ResearchOpen Access06 Oct 2025
Nature Communications

Volume: 16, P: 1-12
Late Pliocene growth of the West Antarctic Ice Sheet to near-modern configuration

This study reveals that the West Antarctic Ice Sheet expanded from a smaller to near-modern configuration during the Pliocene–Pleistocene transition, highlighting this interval as critical for understanding ice sheet stability in a warming climate.

Waliur Rahaman
Marcus Gutjahr
Priyesh Prabhat
ResearchOpen Access21 Jul 2025
Nature Communications

Volume: 16, P: 1-13
Ancient marine sediment DNA reveals diatom transition in Antarctica

Sedimentary ancient DNA can indicate ecosystem-wide changes. Here, the authors show association between warm phases and high diatom abundance in the Antarctic Scotia Sea, in addition to presenting ancient eukaryote sedimentary DNA spanning the last approximately 1 million years.

Linda Armbrecht
Michael E. Weber
Xufeng Zheng
ResearchOpen Access02 Oct 2022
Nature Communications

Volume: 13, P: 1-14
Substantial trace metal input from the 2022 Hunga Tonga-Hunga Ha’apai eruption into the South Pacific

Surface water neodymium isotopes and rare earth element compositions reveal a marked impact from the January 2022 Hunga Tonga-Hunga Ha’apai eruption in the western South Pacific, with released trace metals potentially stimulating biological responses.

Zhouling Zhang
Antao Xu
Martin Frank
ResearchOpen Access18 Oct 2024
Nature Communications

Volume: 15, P: 1-12
Rapid rise in atmospheric CO₂ marked the end of the Late Palaeozoic Ice Age

A pronounced increase in atmospheric CO₂ coincided with warming at the end of the Late Palaeozoic Ice Age, according to an 80-million-year-long boron isotope CO₂ proxy record.

Hana Jurikova
Claudio Garbelli
Lucia Angiolini
ResearchOpen Access06 Jan 2025
Nature Geoscience

Volume: 18, P: 91-97
Incursions of southern-sourced water into the deep North Atlantic during late Pliocene glacial intensification

Northern Hemisphere ice sheets expanded 2.7 million years ago. Sediment geochemistry suggests that at this time, the North Atlantic began to experience incursions of southern-sourced water during glacials, similar to the last glacial period.

David C. Lang
Ian Bailey
Marcus Gutjahr
Research04 Apr 2016
Nature Geoscience

Volume: 9, P: 375-379
No detectable Weddell Sea Antarctic Bottom Water export during the Last and Penultimate Glacial Maximum

The Southern Ocean plays a key role in glacial-interglacial transitions and today, Weddell Sea derived Antarctic Bottom Water is one of the most important deep water masses. New records show that in contrast to today, no Weddell Sea water was exported during the last two glacial maxima, providing new insights towards the condition of Antarctic Bottom Water formation in extreme climate states.

Huang Huang
Marcus Gutjahr
Gerhard Kuhn
ResearchOpen Access22 Jan 2020
Nature Communications

Volume: 11, P: 1-10
Antiphased dust deposition and productivity in the Antarctic Zone over 1.5 million years

A new high-resolution record for the Antarctic Zone shows persistent anti-phasing of high interglacial ocean productivity and high glacial dust deposition, suggesting a close inter-hemispheric coupling of cryosphere, ocean and atmosphere.

Michael E. Weber
Ian Bailey
Xufeng Zheng
ResearchOpen Access19 Apr 2022
Nature Communications

Volume: 13, P: 1-18
Permian–Triassic mass extinction pulses driven by major marine carbon cycle perturbations

The end-Permian mass extinction was linked with ocean acidification due to carbon degassing associated with Siberian Trap emplacement, according to boron isotopes from fossil shells and reconstruction of the carbon cycle.

Hana Jurikova
Marcus Gutjahr
Anton Eisenhauer
Research19 Oct 2020
Nature Geoscience

Volume: 13, P: 745-750
Glacial Southern Ocean deep water Nd isotopic composition dominated by benthic modification

Moritz Hallmaier
Eva M. Rückert
Norbert Frank
ResearchOpen Access20 Jan 2025
Scientific Reports

Volume: 15, P: 1-15
Very large release of mostly volcanic carbon during the Palaeocene–Eocene Thermal Maximum

Boron and carbon isotope data, used in an Earth system model, show that the Palaeocene–Eocene Thermal Maximum was associated with a much greater release of carbon than thought, most probably triggered by volcanism in the North Atlantic.

Marcus Gutjahr
Andy Ridgwell
Gavin L. Foster
Research31 Aug 2017
Nature

Volume: 548, P: 573-577
Arctic drainage of Laurentide Ice Sheet meltwater throughout the past 14,700 years

A strong outflow event from Lake Agassiz at the end of the Bølling-Allerød plausibly caused the Younger Dryas cold period by an abrupt Arctic freshening, according to geochemical investigation of sediment cores from the Canadian Arctic.

Finn Süfke
Marcus Gutjahr
Jörg Lippold
ResearchOpen Access25 Apr 2022
Communications Earth & Environment

Volume: 3, P: 1-11

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