There are more than 2,600 dams in Michigan, many of which are not maintained and no longer serve a purpose.

Many are considered unsafe due to risk of collapse.  Unmaintained dams deteriorate, threatening homes and property or people who may be downstream, said Chris Freiburger, a supervisor with the fisheries division of the Michigan Department of Natural Resources.

“When we look at the number of dams we have and the age that we know of, it becomes a concern,” Freiburger said. “It’s a real infrastructure issue here that needs to be dealt with.”

The state recently targeted six dams to remove or repair. The money required for the work is from general fund dollars, which is tax money that the Michigan legislature allocates.

The U.S. Coast Guard will soon say goodbye to its 100-year-old building in Painesville Township and hello to a new state-of-the-art complex.

In the coming months, the U.S. Coast Guard plans to demolish the existing station and boathouse sitting along Coast Guard Road in Painesville Township and build a new $11.3 million complex in its place by September 2014.

The current facility is 100 years old and is due for more than a makeover, said Commander Lt. Edward Wieland, project manager for the US Coast Guard's Facilities Design and Construction Center.

For years now, we’ve heard bad news about the Great Lakes. Most of it has to do with invasive species getting into the lakes and wrecking the food web. One writer called it a slow-moving underwater wildfire.

So it might surprise you to hear that native fish are doing very well in one of the lakes. The changes are so dramatic scientists are a bit puzzled and can’t explain what’s happening.

Water levels in the Great Lakes were at a record low in January. Like many issues affecting the Great Lakes Region, Canadians and Americans are affected equally. As a region, we have common interests but no common voice.

That is why dozens of organizations from across the region are this week launching a new binational council to address our environmental and economic challenges. The new Council of the Great Lakes Region will bring together leaders from diverse sectors across the eight Great Lakes states, Ontario and Quebec.

Toxic chemicals clinging to plastics could cause health problems for fish and other organisms in the Great Lakes.

They were discovered in samples from the first-ever Great Lakes plastic survey in Lake Erie, Lake Huron and Lake Superior last summer, Lorena Rios Mendoza, an assistant chemistry professor at the University of Wisconsin – Superior, announced Monday.

And instead of just sitting in sediments as some scientists previously thought, those pollutants might be traveling with plastics to other parts of the Great Lakes.

Governor Rick Snyder signed a bill pouring $20.9 million into an emergency dredging program.

The money will allow 58 public bays and harbors, used mostly for recreational boating, to be cleared of the sands and sediment that are clogging them and leaving many boats stranded. The dredging is needed to deal with the consequences of record low lake levels in the Great Lakes, especially Lakes Michigan and Huron.

The Michigan Department of Natural Resources will release about 100,000 Atlantic salmon into Lake Huron and two of its tributary streams this spring.

Yearling salmon will be stocked in the St. Marys River, the Au Sable River, Thunder Bay River and Lexington Harbor in southern Lake Huron.

They are raised in a laboratory at Lake Superior State University in Sault Ste. Marie and the Platte River State Fish Hatchery near Beulah.

Todd Grischke is the DNR's Lake Huron Basin coordinator. He says the fisheries division's managers have consulted with interested groups about where to release the salmon.

Alcoa and Reynolds Metals will pay almost $20 million to restore habitat and wildlife on the St. Lawrence River near Massena. The settlement ends a more than 20-year-old lawsuit spearheaded by the St. Regis Mohawk Tribe. 

For decades until the 1970s, Alcoa, Reynolds, and a third industrial giant, General Motors, released toxic chemicals, including PCBs, into the St. Lawrence River – just upriver from the Akwesasne Mohawk reservation.

Great Lakes researchers are using new DNA techniques to track down and control the spread of invasive species. Christopher Jerde, a professor at the Notre Dame is creating a basin-wide surveillance program. 

The researchers search for the DNA of an invader in the environment, or eDNA, with techniques that may be a boon for understanding how they enter the Great Lakes basin.

The state House of Representatives voted 107-3 to provide $20.9 million for emergency dredging in 49 harbors and bays in the Great Lakes. 

The bill also appropriated $23 million for 76 projects paid for by the Natural Resources Trust Fund.