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Saltier rivers, sicker waters: what seawater intrusion could do to the world's freshwater microbiomes
An MIT team says rising seas and saltier estuaries could reshape the invisible ecosystems that keep freshwater habitable, with consequences for drinking water, fisheries and the global carbon cycle.
Desk note: Monexus frames this as a mechanism study with global stakes rather than a localised environmental story; the MIT work is the lede because the sources point to a single coherent experiment, and the policy read is held to what the data supports.
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