Great Lakes

Dams hurt native fish by blocking their access to rivers — but removing dams to let the fish through would open the way for invasive species.

A first-of-its-kind barrier designed to deal with this problem by sorting fish will be tested on the Boardman River in downtown Traverse City. If it’s successful, it could be a model for rivers all over the world.

What to do with dams

Tribal nations, Michigan’s governor and environmental groups are all calling for a shutdown of Line 5: the pipeline that carries oil underneath the Straits of Mackinac.

They say the pipeline, which is 60-plus years old, poses too great a risk of rupturing.

The pipeline doesn’t just carry oil — its liquid mix includes propane that is delivered to Michigan’s Upper Peninsula. So, what would happen to U.P. households using propane if Line 5 shut down?

People who have homes on the sandy, eroding shores of Lake Michigan don’t have a lot of protections when it comes to insurance coverage. 

Regular homeowners insurance does not cover flooding or any land movement, including erosion of the land beneath a structure.

Banks that give loans to lakefront homes require flood insurance, which could possibly provide some erosion coverage.

The Association of State Floodplain Managers Alan Lulloff says erosion that happens after a storm could be covered.

This week on Points North, how rising water levels and shoreline erosion are threatening homeowners on the coast of Lake Michigan.

Plus, how businesses in Fishtown are already falling into the water.

Fishtown officials are looking to move three shanties — historic buildings — from their original location in an effort to repair foundations rotted by high water levels this summer. 

The shanties will be placed roughly 10 to 15 feet back from their current location. They will be encased in weatherproof material to protect the structures from Michigan’s harsh winter weather.

The price tag to move them and replace the foundations is about $1 million, says Amanda Holmes, executive director of Fishtown Preservation. 

A new nonprofit is training citizen scientists to collect data on fish in the Great Lakes, which could be a game changer for research in the region and help prevent the establishment of invasive species.

More than 300 people braved the Straits of Mackinac Sunday for the 13th annual Mighty Mac Swim.

Indigenous governments and activists in the Great Lakes have been leaders in the movement to shut down the twin oil pipelines that run under the Mackinac Straits.

Now, one of the most visible people in that movement has left his tribal government job and set up his own consulting firm. One of his clients? The pipelines’ owner, Enbridge Energy.

This sudden change has upset indigenous communities in the region, and some worry it’s a “divide-and-conquer” tactic.

This week on Points North, female pilots are underrepresented in the commercial aviation industry. That’s been true for a while, but a program in northern Michigan is making progress. Plus, the plight of fudge at local airports and a story from Michigan’s maritime past.

This week on Points North, the water is so high in Michigan this summer that shorelines are disappearing, docks are underwater and rivers are overflowing. Plus hear how high water is affecting public access to beaches and research on avian botulism. 

Michigan has complicated laws when it comes to private beaches and public access, and the rules for inland lakes are different from the Great Lakes.

The last major outbreak of avian botulism on Lake Michigan was in 2016, when hundreds of dead birds washed up on shore. The bacterial disease has affected waterfowl like loons and mergansers in the Great Lakes for decades, but high water levels on the lakes are good news for the birds for now.

Half a century ago, hundreds of pairs of piping plovers lived in the Great Lakes. But by the 1980s, they were on the verge of extinction and only a dozen pairs remained.

Over time, wildlife biologists have helped increase the population. But it’s still well below a stable number and each year there’s a new threat.

Piping plovers are small, stout white-gray birds. In the spring, they can be found nesting on the shores of the Great Lakes. Once a fixture on the lakes, the birds are now on the federal Endangered Species List.