Oxygen decline will impact marine ecosystems and the dependent human population. Even the smallest fall in oxygen levels, when near already existing thresholds, can create significant issues with far-reaching and complex biological and biogeochemical implications.
At a global-scale, warming-induced oxygen loss is driving progressive persistent changes in nutrient cycling and recycling, species distributions, marine ecosystem services and habitat availability. Whereas at a regional scale, the formation of low oxygen zones and harmful algal blooms become more frequent. In a ground-breaking new report, IUCN, in partnership with leading scientists, explore the causes, consequences and socio-economic implications of ocean deoxygenation, and discusses how we, as a planet, must react.
IUCN's full report on Ocean Deoxygenation (medium resolution, 23Mb)
IUCN's full report on Ocean Deoxygenation (high resolution, 77Mb)