Water

Forty years on, future of contaminant plume under Ann Arbor still murky

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By Elinor Epperson

Gelman Sciences LLC manufactured medical filters for decades, but that’s not the public health issue the company is known for. Dioxane from Gelman’s Scio Township plant leaked into Ann Arbor’s groundwater, creating a plume of contamination more than 4 miles long. That contamination was discovered by a University of Michigan graduate student, Dan Bicknell, who alerted the state environmental regulator on June 26, 1984. But Gelman had been dumping the chemical since 1966. And 40 years after Bicknell blew the whistle, the plume is larger than ever.

Climate

Green infrastructure job trainings aim to support growing field

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By Elinor Epperson

As more green infrastructure projects are installed across the state, more workers are needed to maintain them. Friends of the Rouge, a Detroit-area nonprofit that manages the River Rouge watershed, is offering a short course about maintaining green infrastructure like rain gardens. The course is an opportunity for workers to expand their job skills and contribute to green projects in the metropolitan area. Cyndi Ross, the restoration manager at Friends of the Rouge, said more green projects in the city means more trained workers are needed. “It’s in demand, and the demand is growing,” she said.

: Record-setting heat waves are becoming more frequent due to climate change. Image: JJ Gouin/Adobe Stock
Climate

Heat waves are a sign of ‘creeping changes’ in climate, expert says

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By Elinor Epperson

There’s no easy way to say it: The heat is only getting worse. Extreme heat events in the Great Lakes region will only become more frequent as climate change warms the oceans, lakes and air, a University of Michigan climate expert said. And the earlier that heat waves start each season, the more there may be in the months to come. Richard Rood is a professor emeritus at the University of Michigan Department of Climate and Space Sciences and Engineering. He said extreme weather will change what feels “normal” for each season.

Water

Michigan program helps hobbyists safely rehome aquatic flora and fauna

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By Elinor Epperson

Don’t flush that unwanted goldfish – find it a new home instead. Home aquariums and water gardening are two of the many routes invasive species take to enter Michigan habitats. A Michigan State University Extension program provides educational materials and resources for rehoming unwanted aquatic pets. Reduce Invasive Pet and Plant Escapes (RIPPLE) works with hobbyists, retailers and gardeners to minimize the release of invasive species into the wild. Most people may not give much thought to letting one or two pets go for a variety of reasons – financial, lifestyle changes or change of seasons, for example – but Paige Filice, the program’s primary coordinator, said those numbers add up.

Image: A Michigan Department of Natural Resources technician collects a red swamp crayfish from a retention pond in Novi in August 2022. Matthew Clara/ DNR
Water

Michigan trying new approaches against invasive crayfish

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By Elinor Epperson

Researchers are exploring new techniques to remove an invasive crayfish from Michigan waters. The Michigan Department of Natural Resources has been fighting an invasion of red swamp crayfish since they first appeared in the state in 2017. Aggressive attempts to trap and remove the crustacean haven’t worked. Kathleen Quebedeaux, a fisheries biologist with the DNR, said eradicating the invader will require a variety of approaches. “In order to have a more efficient means of achieving eradication, we need other tools in our toolbox,” she said.

Transportation

Ohio roads reflect tumultuous winter weather

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Winters keep the Ohio Department of Transportation so busy, they have a well-circulated joke about it: “If we’re not plowing, we’re patching,” said Matt Bruning, press secretary for the department. 

The state maintains more than 43,000 miles of highway pavement that forms potholes as winter temperatures quickly rise and drop.