Image: Rusty red waters in Madagascar

Iron-rich sediment colors the red-orange waters of the Betsiboka River Delta in Madagascar in this image taken by an astronaut on the International Space Station on Sept. 30, 2023. The sediment can clog waterways in the delta's ...

Accounting for oxygen in modeling coastal ecosystems

Driven by climate change and pollution, the decline of oxygen levels in oceans is altering biogeochemical cycles, threatening marine plants, animals and ecosystems. But how accurately are we projecting the fate of marine ...

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