Increasing hypoxia on global coral reefs under ocean warming

Nature Climate Change, Published online: 16 March 2023; doi:10.1038/s41558-023-01619-2

Using data on oxygen variability taken from 32 representative reef sites, the authors show that hypoxia is already common. Under future scenarios of ocean warming and deoxygenation, the duration, intensity and severity of hypoxia will increase, with nearly one-third of reefs experiencing severe hypoxia.