tipping points

A closer look at web tools and sites that boost research and empower Great Lakes communities to secure a healthy environment and economy. 

For community planners, balancing community growth and environmental health can be a challenge. Putting down roads, building along waterways, or converting prairies to farmland puts stress on local ecosystems—sometimes so much that it can trigger rapid and potentially irreversible shifts in how they function. Fortunately, Tipping Points and Indicators gives watershed planning groups and others the information they need to avoid these tipping points while still meeting community needs. 

The web tool uses the latest watershed research and cutting-edge technology to show planners how close their watershed is to known tipping points and what the watershed will look like if land use decisions continue “business as usual.” Planners can also test how developing more in one location or restoring habitats in another moves ecosystems closer to or further from tipping points. With help from a Sea Grant facilitator, planners can use these interactive maps and simulators—along with recommended policies, ordinances, and outreach efforts—to prevent aquatic ecosystems from being degraded beyond repair. 

Since it was launched in 2013, Tipping Points and Indicators has undergone many design and feature updates inspired by months of pilot testing. Larger maps and detailed legends that toggle on and off give users a closer look at their watershed and make information on characteristics like stream quality and land cover types more accessible. Users can also easily track how proposed land use changes will effect ecosystem health with updates to the planning simulators. 

To learn more about the tool and see key features in action, watch this introductory video created by the IISG team leading the project. 

Tipping Points and Indicators was developed in collaboration with Purdue University, University of Michigan, Michigan State University, University of Minnesota Duluth, University of Windsor, the Great Lakes Environmental Research Laboratory, the Cooperative Institute for Limnology and Ecosystem Research, the Great Lakes Restoration Initiative, NOAA, and the Sea Grant Great Lakes Network. Funding for the four-year project comes from NOAA and EPA. 

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Ripple Effects is a collection of 8 activities for grades 6–12 that introduces students to aquatic invasive species in the Great Lakes.Through research, reporting, and role-playing games, students will:✅ Explore how non-native species arrived✅ Understand why they threaten native ecosystems✅ Investigate their impact on the Great LakesAligned with Next Generation Science Standards and Great Lakes Literacy Principles, this curriculum is perfect for engaging students in real-world science and stewardship.🔗 visit the link in bio to learn more
Graduate students: don’t miss your chance to advance your research and expand your professional network! The 2026 Illinois-Indiana Sea Grant Graduate Scholars Program is now open for applications. Whether your work focuses on coastal resiliency, Great Lakes science, water resources, or community engagement, this opportunity offers funding and professional development to support your graduate research. Learn more and apply today — opportunities like this don’t come every year!👉 Read the full details at the link in bio.