Gulf of America ‘dead zone’ shrank sharply in 2025, scientists say

By Nolan McKendry | The Center Square The Gulf of America’s “dead zone” has shrunk significantly this summer, with scientists measuring a hypoxic area of just over 4,400 square miles — roughly a third smaller than last year and far less than the longterm average, federal officials announced Wednesday.The dead zone, a stretch of oxygen-depleted water that forms annually o...

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