From the Article:

The last coal-fired passenger steamship in the U.S. is attempting to become more green while maintaining its steam-powered charm as it travels to and from Wisconsin.

Last year, the SS Badger received a $600,000 federal grant to study alternative fuel sources beyond coal in efforts to make the ship zero-carbon.

The Badger connects Manitowoc to Ludington, Michigan, through a four-hour ferry ride across Lake Michigan. The ship first set sail on the lake more than 70 years ago. In 2016, the U.S. Department of the Interior designated the Badger a National Historic Landmark.