Before becoming an activist, Sadkowska was a vocalist for Żywiołak from 2008 to 2011. Monika was replaced by Izabella Byra on 2008. It was when she was on "maternity leave". Currently, she is working in "WWF Poland" as a coordinator of "Secretariat of the Forum of Mayors for Just Transition". "Forum of Mayors for Just Transition" is a place where mayors exchange information and experience about the process of their town. The process was for leaving coal as a source of energy.