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Web-based tipping points tool will help communities protect and grow at the same time
July 16th, 2014 by iisg_superadmin
Sea Grant staffers take new interactive watershed planning tool for a spin
November 6th, 2013 by Irene Miles
The Tipping Points and Indicators tool uses watershed data and cutting-edge research to show planners where aquatic ecosystems in their region are stressed by various factors to the degree that they are in danger of crossing a “tipping point,” triggering rapid and sometimes irreversible shifts in their functioning. With help from a Sea Grant facilitator, planners can use the tool’s interactive maps and simulators to specify important regional priorities, pinpoint specific land use practices that threaten ecosystem health, and test how further development, restoration, or conservation projects would help or hurt. Together with suggested policies, ordinances, and outreach efforts, these features help planners develop watershed management plans that prevent ecosystems from being degraded beyond repair.
The tipping points tool is part of a four-year project funded by NOAA and EPA and coordinated by Illinois-Indiana Sea Grant. Research and outreach partners include 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.
*Pictures:
Top – Mark Breederland (Michigan Sea Grant) and Brian Miller (IISG)
Middle – Joe Lucente (Ohio Sea Grant) and Julie Noordyk (Wisconsin Sea Grant)
Bottom – Mary Penney (New York Sea Grant) and Jarrod Doucette (Purdue University)
In the news: Great Lakes lawmakers consider a ban on harmful pavement sealant
November 14th, 2012 by Irene Miles“Negative effects on fish and other aquatic animals include inhibited reproduction, fin erosion, liver abnormalities, cataracts and death, according to Geological Survey reports.Coal-tar sealcoat makes up about half of the PAHs in lake sediment, according to Environmental Science and Technology. It is why PAH levels have increased in the sediment of urban and suburban lakes since 2000 even when other major PAH producers, like power plants, have been decreasing emissions.”
Local water travels a long, long way
June 25th, 2012 by Irene MilesWatersheds are areas where water comes together and drains to a common place. In addition to the streams and rivers and creeks that we can see, though, watersheds encompass a huge range of pathways for water, and your nearby water supply might be part of a very large system that spans multiple states.
“Of course, obtaining sustainable development in town isn’t enough, in and of itself, to guarantee high quality, fishable and swimmable rivers and streams. Industry plays a part; utilities and waste water treatment plants play a part; sensitive farming, ranching, and/or timbering play a part, all in different proportions depending upon the particular watershed in question.”
Recent News
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IISG Instagram
We are excited to offer the opportunity to propose a speaker or panel session during the 2026 Emerging Contaminants in the Environment Conference April 28-29. The conference will feature traditional 15-minute presentations and a poster session on the latest in emerging contaminant research, policies, and outreach in the soil, water, and air.
The deadline to propose a session is June 16, 2025.
Learn more at the link in bio.

What Wild Things Will You Find in Your Watershed? Join us from April 22 to May 19 on iNaturalist for the Great Lakes BioBlitz! Participate in weekly challenges, view others` observations, and build community across the basin.
How to Participate:
-Register: Sign up on iNaturalist.
-Observe: Explore your watershed and document the wildlife you find.
-Engage: Share your observations and connect with fellow nature enthusiasts.

Join the Invasive Crayfish Collaborative for an exciting webinar featuring Purdue University master`s student Izzy Paulsen. Izzy will share her mixed method study exploring how and why teachers use live crayfish and their interest in outreach. Her study draws from interview and survey data conducted in Great Lakes states.
Register at the link in bio.

Deadline extended! The IISG program, in cooperation with the @nationalparkservice at @indianadunesnps and @UrbanRivers in Chicago, is offering two internship opportunities to support conservation policy efforts. Sea Grant’s national Community Engaged Internship (CEI) program aims to broaden participation in coastal, ocean, Great Lakes, and marine sciences providing training and mentorship to the next generation of scientists, decision-makers, and citizens.
The program will do so by recruiting, retaining and engaging students in place-based research, extension, education, and/or communication that respects and integrates local ways of knowing.
Applications due April 21.
Learn more at the link in bio.

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