From AOL today, above and:

The historic Lake Michigan auto and passenger ferry SS Badger, the last coal-fired steamship operating on the Great Lakes, is set to open its season Friday, May 15.

https://www.aol.com/news/ss-badger-season-opens-may-162253664.html

The SS Badger, built in 1952, is still operating on the Great Lakes (USA).

SS Badger came under fire from the Environmental Protection Agency (EPA) and environmental groups in late 2008 because of her daily practice of dumping untreated coal ash from its boilers directly into the waters of Lake Michigan. Burning 55 short tons (49 long tons; 50 t) of coal a day produces 4 short tons (3.57 long tons; 3.63 t) of ash.^[30] Coal ash is a byproduct of Badger‘s propulsion system.https://en.wikipedia.org/wiki/SS_Badger

Kind of puts the new MV Glen Sannox still using dirty diesel, into perspective, doesn’t it.

The Badger is three times the average age of a CalMac ferry and nearly twice the age of the retiring, ‘elderly’ MV Isle of Arran.