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Video shows where nature’s kidneys get their name

August 4th, 2016 by

David Kovacic from the Illinois Natural History Survey says constructed wetlands are “more fail safe” than some of the other nitrogen loss reduction practices highlighted in the Illinois Nutrient Loss Reduction Strategy. Through droughts and floods, heat waves and early frosts, these shallow depressions placed at the edge of farm fields remove an annual average of 25-60 percent of the nitrogen in water carried through tile lines.

Those reductions are key for water quality in Illinois and downstream. By most estimates, the Prairie State is the largest contributor of nutrients to the Gulf of Mexico dead zone. More than 400 million pounds of nitrate-nitrogen leave the state through the Mississippi River system each year. And according to the science assessment at the root of the state’s strategy, the bulk of that comes from the tile-drained region of central and northern Illinois.

Hear more from Kovacic, along with University of Illinois’ Lowell Gentry and The Nature Conservancy’s Maria Lemke, on the benefits of constructed wetlands in the latest video from IISG and the Illinois Water Resources Center.

Special thanks to University of Illinois Extension and the U.S. Department of Agriculture Natural Resources Conservation Service for their contributions.

 

Illinois-Indiana Sea Grant is a part of University of Illinois Extension and Purdue University Extension.

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Got a research idea worth a bigger room? The 2026 State of Lake Michigan Meeting is accepting proposals for symposia and workshops, and we want to hear yours!

📅 Nov. 4–6 | Michigan City, IN
⏰ Proposals due June 1 at 1 PM ET

Help shape what the Great Lakes research community discusses this year.

🔗 Submit at the link in bio.

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Got a research idea worth a bigger room? The 2026 State of Lake Michigan Meeting is accepting proposals for symposia and workshops, and we want to hear yours!📅 Nov. 4–6 | Michigan City, IN⏰ Proposals due June 1 at 1 PM ETHelp shape what the Great Lakes research community discusses this year.🔗 Submit at the link in bio.

To every educator who has brought the Great Lakes into their classroom, thank you. 🍎

Your curiosity is contagious. Your lessons last. And the students who learn to love these waters? They’ll protect them.

Happy Teacher Appreciation Week from all of us at IISG.

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To every educator who has brought the Great Lakes into their classroom, thank you. 🍎Your curiosity is contagious. Your lessons last. And the students who learn to love these waters? They’ll protect them.Happy Teacher Appreciation Week from all of us at IISG.

Located in Washington, D.C., the Sea Grant Knauss Fellowship provides a unique educational and professional experience to graduate students who have an interest in ocean, coastal and Great Lakes resources, and in the national policy decisions affecting those resources. This is a one-year fellowship open to any student, regardless of citizenship, who is enrolled toward a degree in a graduate or professional program on the day of the deadline.

Students enrolled at an Illinois or Indiana university or college should submit their applications through Illinois-Indiana Sea Grant by emailing Angela Archer at amcbride@purdue.edu. Students in surrounding states without a Sea Grant program should contact the National Sea Grant College Program at oar.sg.fellows@noaa.gov for a referral.

Application deadline: June 3, 2026.

To learn more about the fellowship, visit the link in bio.

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Located in Washington, D.C., the Sea Grant Knauss Fellowship provides a unique educational and professional experience to graduate students who have an interest in ocean, coastal and Great Lakes resources, and in the national policy decisions affecting those resources. This is a one-year fellowship open to any student, regardless of citizenship, who is enrolled toward a degree in a graduate or professional program on the day of the deadline.Students enrolled at an Illinois or Indiana university or college should submit their applications through Illinois-Indiana Sea Grant by emailing Angela Archer at amcbride@purdue.edu. Students in surrounding states without a Sea Grant program should contact the National Sea Grant College Program at oar.sg.fellows@noaa.gov for a referral. Application deadline: June 3, 2026.To learn more about the fellowship, visit the link in bio.