Nature Climate Change, Published online: 18 September 2023; doi:10.1038/s41558-023-01796-0

An insight into the global patterns of marine heatwaves from the surface to depths of 2,000 m reveals that subsurface events are more intense and long-lasting than surface ones. Biodiversity exposure to the effects of marine heatwaves is higher at depths of 50–250 m, suggesting that subsurface biodiversity could be at considerable risk.
Nature Climate Change