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Compensation of the effects of salt and temperature changes on water density in the Labrador Sea can explain the minimal response of the Atlantic overturning circulation to convection, according to analyses of observations and reanalysis data.
Methane release rate from Arctic Ocean sediments in winter is significantly lower than in summer, according to surveys of cold-seep activity along the shelf break offshore Svalbard.
Recent seismicity near Mayotte in the Indian Ocean is due to dyke propagation from and drainage of a 25–35 km deep magma reservoir, according to an analysis of earthquake and deformation data.
Rapid oceanic and atmospheric circulation shifts led to a transient peak in the mean temperature of the ocean at the start of the Last Interglacial, according to noble gas isotope records from an Antarctic ice core.
Subsurface iron-oxidizing bacteria are sustained by intermittent oxygen delivery through rock fracture networks, according to biological and geochemical analyses of borehole fluids combined with a fluid mixing model.
Physical and biogeochemical changes in the Southern Ocean over the past decade are largely due to growing meltwater input and intensifying poleward winds, according to observations from ships and floats and model simulations.