Lawn care decisions play a large role in local water quality and the health of aquatic wildlife. The fertilizers, pesticides, and other chemicals we put on our lawns can be washed into nearby lakes and rivers in stormwater runoff. Once there, these pollutants spur algae growth, clog gills, decrease resistance to disease, and suffocate eggs and newly hatched larvae. 

The IISG-led Lawn to Lake program continues to educate homeowners, landscapers, and master gardeners on natural lawn care practices that can improve soil health and protect water quality. The program works with community partners across the region to conduct training workshops and provide ‘how to’ resources for a range of audiences. 

Lawn to Lake outreach has led to management changes on an estimated 22,415 lawn acres. These changes are expected to reduce the use of lawn care chemicals, including weed and feed, by more than 3 million pounds a year, protecting nearby aquatic ecosystems from chemical-laden runoff while fostering healthy lawns. 

To learn more about how IISG is empowering communities and individuals to secure a healthy environment, check out our 2013 program impacts. 

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)