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Swimmable Cities May Be Within Reach as Once-Polluted Waterways Are Restored</title><link>https://www.smithsonianmag.com/science-nature/would-you-jump-into-your-local-river-swimmable-cities-may-be-within-reach-as-once-polluted-waterways-are-restored-180988317/</link><description>Efforts to improve the “swimmability” of urban areas are gaining global traction, from Paris to Chicago</description><pubDate>Tue, 10 Mar 2026 15:13:40 +0000</pubDate><guid>https://www.smithsonianmag.com/science-nature/would-you-jump-into-your-local-river-swimmable-cities-may-be-within-reach-as-once-polluted-waterways-are-restored-180988317/</guid><enclosure length="767945" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/wuSTfeL8c04iHz33iKEmLtxLkIM=/420x240/filters:focal(1024x692:1025x693)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/44/44/44441034-523e-4235-a68b-0a6ba3ac6d61/scs_20.jpg"/></item><item><title>The History of America Flows Through the Hudson River, and the Country’s Aquatic Superhighway Is on the Rebound</title><link>https://www.smithsonianmag.com/history/history-america-flows-through-hudson-river-countrys-aquatic-superhighway-rebound-180987625/</link><description>The bucolic river is famous for reversing its current a few times each day. Now, an ongoing cleanup effort is reversing decades of industrial contamination</description><pubDate>Mon, 17 Nov 2025 12:00:00 +0000</pubDate><guid>https://www.smithsonianmag.com/history/history-america-flows-through-hudson-river-countrys-aquatic-superhighway-rebound-180987625/</guid><enclosure length="657239" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/483Wmg1k6S4oIhXa42jkynQ4Dvo=/420x240/filters:focal(450x300:451x301)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/70/c0/70c0e989-8a5f-4b73-b8e0-e14a48bb51af/hudson_river.jpg"/></item><item><title>In 1907, This Daring Performer Walked on Water From Cincinnati to New Orleans, Covering Nearly 1,600 Miles in 40 Days</title><link>https://www.smithsonianmag.com/history/in-1907-this-daring-performer-walked-on-water-from-cincinnati-to-new-orleans-covering-nearly-1600-miles-in-40-days-180987576/</link><description>Charles Oldrieve used custom-made wooden shoes to float on the water's surface and propel 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