Great Lakes Fishery Commission

What lies beneath the Great Lakes' waves is largely unknown, but there's a new push to learn more about thousands of shipwrecks, underwater infrastructure and the impacts of climate change on the bottom of the world's largest freshwater system.

The tentative deal covers sections of Lake Michigan, Lake Huron and Lake Superior included in an 1836 treaty that ceded tribal lands but provided continued hunting and fishing rights

Three organizations say they're relying on an intergovernmental body to develop solutions to problems caused by invasive mussels in the Great Lakes.The…