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Lake St. Clair's Algae Crisis Threatens 'Blue Economy' and Quality of Life

Algae plagues Lake St. Clair for decades, blocking access and harming its vital economy. Cleanup efforts aim to restore the lake's health and protect its ecosystem.

In this image I can see a fence, water, trees, buildings, light poles, vehicles on the road and the...
In this image I can see a fence, water, trees, buildings, light poles, vehicles on the road and the sky. This image is taken may be near the lake.

Lake St. Clair's Algae Crisis Threatens 'Blue Economy' and Quality of Life

Lake St. Clair, a vital border waterway between Michigan and Ontario, is grappling with a persistent algae issue that's threatening its 'blue economy' and quality of life for residents. The foul-smelling brown algae, Microseira wollei, has been plaguing the lake for over two decades, blocking access and causing concern. Now, a collaborative effort involving local, state, and international organizations is underway to manage and clean up the algae.

The U.S. Army Corps of Engineers is at the forefront of these efforts, working with local and state representatives to begin a cleanup project next year. The state's 2026 budget has allocated $800,000 for a three-year 'field trial' to test various management methods. The Army Corps' study found the algae too widespread to eradicate entirely, leading to a long-term strategy focused on mechanical dredging of the lakebed and potential use of algaecide.

Candice Miller, Macomb County's public works commissioner, is 'cautiously optimistic' about these plans. However, the Michigan Department of Natural Resources had to relocate its boat launch after repeated dredging failed to clear the clogs or halt the algae's spread. Residents and businesses, particularly those in the fishing industry, are increasingly concerned as dredged areas become blocked again in just weeks, posing a significant threat to the lake's economy.

The Environmental Protection Agency (EPA) and the International Joint Commission (IJC) are also involved in managing this issue, as Lake St. Clair is part of the Great Lakes system shared by the U.S. and Canada. With thousands of annual visitors enjoying its shoreline, trails, and fishing opportunities, the lake's health is crucial for its 'blue economy'. The upcoming cleanup efforts and field trials aim to restore the lake's accessibility and protect its vital ecosystem.

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