From Chicago Tribune:

In a city built on a swamp, where rainstorms already flood basements and force sewage into Lake Michigan and local streams, climate change could make Chicago’s chronic water pollution woes even worse.

Researchers hired by Mayor Richard Daley’s office estimate that intense rainfall will happen more frequently in the not-so-distant future because of warming global temperatures, challenging the region’s aging sewers and the troubled Deep Tunnel project more than ever.

Rains of greater than 2.5 inches a day, the amount that can trigger sewage dumping into Lake Michigan, are expected to increase by 50 percent between now and 2039, according to a study by scientists from the University of Illinois at Urbana-Champaign and Texas Tech University. By the end of the century, the number of big storms could jump by a whopping 160 percent. Read more.  

IISG Instagram

Celebrate Earth Day with freshwater science and good conversation! Join Illinois-Indiana Sea Grant, the Northwestern Center for Water, Loyola University researcher Tim Hoellein, and IISG’s Sarah Zack for Science Sips: Trash Talk about Chicago Waterways. Learn what research reveals about litter and trash in Lake Michigan and Chicago waterways and what we can do to help.Plus, enjoy Great Lakes trivia games!📅 April 22, 2026⏰ 7–9 PM📍 Sketchbook Brewing Company, Evanston Tap RoomCome curious and ready to test your Great Lakes knowledge!
Find us at Chicago Comic & Entertainment Expo, March 27–29! We’re linking Subnautica with Great Lakes science through fun, hands‑on activities about food webs, invasive species, and aquaponics.Come geek out with us! 🔗 in bio for event info
Coastal protection is not limited to concrete, rocks, and steel. Coastal protection solutions exist on a spectrum, ranging from softer “green” solutions to harder “gray” structures.Nature-based coastal solutions fall between green and gray techniques, providing multiple benefits to people and habitats.Our three-part video series, Nature-Based Coastal Solutions in the Great Lakes, is now available to watch. Learn how nature-based coastal solutions, including nature-driven and hybrid approaches, can protect shorelines while supporting ecosystems and communities.Watch the 3-part video series at the link in bio.(Photo credit: Liz Spitzer, Illinois State Geological Survey, Coastal Research Group)