Climate change has likely begun to suffocate the world’s fisheries
By 2080, around 70% of the world’s oceans could be suffocating from a lack of oxygen as a result of climate change, potentially impacting marine ecosystems worldwide, according to a new study. The new models find mid-ocean depths that support many fisheries worldwide are already losing oxygen at unnatural rates and passed a critical threshold of oxygen loss in 2021.
Oceans carry dissolved oxygen as a gas, and just like land animals, aquatic animals need that oxygen to breathe. But as the oceans warm due to climate change, their water can hold less oxygen. Scientists have been tracking the oceans’ steady decline in oxygen for years, but the new study provides new, pressing reasons to be concerned sooner rather than later.
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