Nature Geoscience, Published online: 07 July 2026; doi:10.1038/s41561-026-02063-5

Author Correction: Ocean iron fertilization from enhanced mid-ocean-ridge volcanism due to ice-age sea-level falls

Nature Geoscience, Published online: 06 July 2026; doi:10.1038/s41561-026-02015-z

This Perspective explores how changes in microbial and hydrological processes, in response to permafrost thaw across Arctic landscapes, alter iron–organic carbon interactions and therefore carbon cycling and greenhouse gas emissions.

Nature Geoscience, Published online: 06 July 2026; doi:10.1038/s41561-026-02035-9

The amount of energy that soil microbes can obtain from oxidizing available organic carbon is limited, which keeps many of them dormant and restricts their growth, necromass production and ultimately the accrual of soil carbon, according to analyses of soil carbon and energy fluxes.

Nature Geoscience, Published online: 01 July 2026; doi:10.1038/s41561-026-02026-w

Two independent studies imply that a remarkable burst of voluminous volcanism on the Pacific plate during the Cretaceous is attributable to coupled plate–mantle dynamics. Together, their findings show how enhanced subduction, mantle heterogeneity, and plate tectonic boundaries collectively controlled the timing and expression of these oceanic large igneous provinces.

Nature Geoscience, Published online: 29 June 2026; doi:10.1038/s41561-026-02027-9

Two independent studies suggest that thousands of submarine volcanoes in the Pacific Ocean and offshore Africa are likely to have resulted from two high-temperature structures in the lower mantle, whose location and morphology are influenced by plate subduction. Together, their findings imply many forms of intraplate volcanism are tied to plate tectonics through the deep mantle.

Nature Geoscience, Published online: 29 June 2026; doi:10.1038/s41561-026-02034-w

Satellite observations suggest an approximate 20% increase in global riverine particulate organic carbon export to the ocean over the past four decades, driven primarily by tropical deforestation and Arctic permafrost thaw.

Nature Geoscience, Published online: 26 June 2026; doi:10.1038/s41561-026-02014-0

By quantifying carbon fixation in obligate heterotrophic bacteria across the global ocean, we show that about 20% of dark dissolved inorganic carbon (DIC) fixation arises from anaplerotic processes — reaching up to almost half of dark DIC fixation in some regions or conditions.

Nature Geoscience, Published online: 26 June 2026; doi:10.1038/s41561-026-02024-y

Dissolved oxygen concentrations increased in rivers and lakes across China between 2005 and 2022 due to nutrient management and despite climate warming-related decreases, according to a study of dissolved oxygen and environmental variables.

Nature Geoscience, Published online: 22 June 2026; doi:10.1038/s41561-026-02020-2

Opposing wet and dry conditions in Central and mainland Southeast Asia over the past millennium were controlled by climate variability over the Pacific and Indian oceans, a pattern likely to become more severe due to ongoing warming, according to an analysis of palaeoclimate records.

Nature Geoscience, Published online: 22 June 2026; doi:10.1038/s41561-026-02023-z

The intensity and centennial-scale variability of the winter and summer South Asian monsoons were controlled by different drivers during the last deglaciation, according to mass spectrometry and hyperspectral imaging, supported by geochemical analyses of a sediment core from the Arabian Sea.

Nature Geoscience, Published online: 17 June 2026; doi:10.1038/s41561-026-02018-w

Heat flux across the core–mantle boundary is laterally variable, and heat may flow into the core beneath hot piles of dense material such as large low-shear-wave-velocity provinces, according to mantle thermochemical convection models.

Nature Geoscience, Published online: 16 June 2026; doi:10.1038/s41561-026-02008-y

Reanalysis of stratospheric air samples provides compelling evidence that stratospheric circulation has accelerated in recent decades, helping to resolve a long-standing debate about the strength of the stratospheric circulation.

Nature Geoscience, Published online: 16 June 2026; doi:10.1038/s41561-026-02011-3

Large-scale stratospheric circulation has accelerated since the 1990s and is stronger and more vertically structured than models predict, according to trace gas measurements showing declines in Northern Hemisphere extratropical stratospheric mean age.

Nature Geoscience, Published online: 16 June 2026; doi:10.1038/s41561-026-02016-y

Large igneous province emplacement in the Pacific Ocean through the Cretaceous can be explained by interplay between spreading ridge migration and strong mantle upwelling partly driven by enhanced subduction flux, according to geodynamic simulations.

Nature Geoscience, Published online: 16 June 2026; doi:10.1038/s41561-026-02012-2

The burial of terrestrially derived organic carbon in coastal marine sediments greatly increased during the Palaeocene–Eocene Thermal Maximum, probably helping to draw down a large portion of carbon released during the hyperthermal event, according to biomarker records from five sites.

Nature Geoscience, Published online: 15 June 2026; doi:10.1038/s41561-026-02000-6

Time-resolved X-ray diffraction experiments in a laser-heated diamond anvil cell suggest that hydrogen in iron hydride becomes highly mobile at Earth’s core pressures and high temperatures. The measurements provide experimental indications of a superionic state in which hydrogen moves through a crystalline iron lattice.

Nature Geoscience, Published online: 15 June 2026; doi:10.1038/s41561-026-02013-1

While most newly formed organic carbon in the dark ocean is derived from chemolithoautotrophic microorganisms, 17% also comes from an alternative pathway called anaplerosis that is related to the tricarboxylic acid cycle, according to multi-omics datasets and single-cell analysis.

Nature Geoscience, Published online: 12 June 2026; doi:10.1038/s41561-026-02004-2

Carbon dioxide hydrates on the seafloor are sustained by the venting of liquid CO2 associated with volcanic activity near Mayotte Island, according to observations from remotely operated vehicles and geochemical analyses.

Nature Geoscience, Published online: 11 June 2026; doi:10.1038/s41561-026-02022-0

Nature Geoscience joins journals from across the Nature Portfolio in offering formal co-review — an opportunity to support early-career researchers and ensure equal recognition for all those that contribute to the peer review process.

Nature Geoscience, Published online: 11 June 2026; doi:10.1038/s41561-026-01997-0

The structure of perovskite underpins materials from as deep as 2,900 kilometres in the Earth to those fundamental to modern technology, as Simon Redfern explains.