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The link between Iowa corn and the dead zone in the Gulf artwork
Science & Medicine

The link between Iowa corn and the dead zone in the Gulf

Climate Connections by Erika Hopman

Aug 10, 202601:31Science & Medicine

The Mississippi River carries fertilizer runoff from the Midwest to the Gulf – and increasingly extreme rain is making the problem more urgent. Learn more at

About This Episode

The link between Iowa corn and the dead zone in the Gulf is an episode from Climate Connections by Erika Hopman. The Mississippi River carries fertilizer runoff from the Midwest to the Gulf – and increasingly extreme rain is making the prob...

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Published Aug 10, 2026, 01:31 long, audio available.

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