https://www.kwit.org/tags/larry-weber Larry Weber en-US Copyright Tue, 11 Aug 2026 21:47:55 GMT https://www.kwit.org/podcast/spm-news/2026-08-11/hydrologist-warns-about-historic-rise-of-nitrates-in-iowa-rivers University hydrologist warns about historic rise of nitrates in Iowa rivers. Tue, 11 Aug 2026 21:47:55 GMT https://www.kwit.org/podcast/spm-news/2026-08-11/hydrologist-warns-about-historic-rise-of-nitrates-in-iowa-rivers Bret Hayworth