Chicago River Revival: From Industrial Wasteland to Thriving Ecosystem Hosting First Swim in a Century
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📰 The quick summary: The Chicago River has been transformed from a polluted waterway to a thriving ecosystem with 77 fish species and enough clean water to host the city’s first downtown open water swim in nearly a century.
📈 One key stat: The number of fish species in the Chicago River has increased from just 5 in the 1970s to 77 today, showing remarkable ecological recovery.
💬 One key quote: “I want to continue to see the awesome shifts we’re seeing here on Goose Island, where we see recreation and wildlife and industry kind of all living in a way that makes sense for everyone in a fair way,” said Krystyna Kurth, coordinator of conservation action at the Shedd Aquarium.
1️⃣ The big picture: Chicago’s once heavily polluted river has undergone a remarkable transformation, evolving from an industrial dumping ground to a recovering ecosystem supporting diverse wildlife. Thanks to federal Clean Water Act regulations, improved sewage management, and innovative projects like floating wetlands, the waterway now hosts 77 fish species compared to just five in the 1970s. This revival has attracted wildlife including a famous giant snapping turtle nicknamed “Chonkosaurus” and changed public perception from viewing the river as dirty to appreciating its ecological diversity. The restoration has been so successful that Chicago plans to host its first open water swim downtown in nearly a century.
2️⃣ Why is this good news: Nature has responded powerfully to cleanup efforts, with fish populations expanding from just 5 species in the 1970s to 77 species today. Projects like “The Wild Mile” floating eco-park create habitat while filtering pollutants through native plant root systems. Formerly polluted riverfront properties have transformed into public amenities and desirable real estate, reconnecting communities to their waterway. The river’s improving health has sparked public interest and engagement, evidenced by the return of recreational activities like the upcoming swim event that ended in the 1920s due to pollution.
3️⃣ What’s next: Conservation groups aim to extend the successful Wild Mile eco-park beyond its current 700-foot length. Environmentalists hope to bring similar ecological revitalization to the South Branch of the river, which flows through neighborhoods that have historically faced environmental injustices. The renewed ecosystem must now be protected from threats like recent Supreme Court rulings that weaken Clean Water Act protections.
Read the full story here: Inside Climate News – In the Once Heavily Polluted Chicago River, More Fish, a Giant Snapping Turtle and an Upcoming Swim
