By 2080 around 70% of the world’s oceans could be suffocating from a lack of oxygen, potentially impacting marine ecosystems worldwide. Mid-ocean depths that support many fisheries are already losing oxygen at unnatural rates and passed a critical threshold of oxygen loss in 2021. Rising temperatures mean warmer waters holding less dissolved oxygen, which creates less circulation between the ocean’s layers. The middle layer is particularly vulnerable to deoxygenation since it’s not enriched with oxygen by the atmosphere and photosynthesis like the top layer, and the most decomposition of algae (that consumes oxygen) occurs in this layer.
Story Source: American Geophysical Union.
www.sciencedaily.com/releases/2022/02/220201161050.htm
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