The Finnish Greens have only been explicitly pro-nuclear, or at least lukewarm toward nuclear as the least bad out of bad solutions, for a few years. This is to a large extent due to a shift of power from the old guard to a STEM-friendly faction inside the party. But less than ten years ago, in 2014, when the then government decided to give a preliminary permission to build another nuclear plant in Finland, the Greens left the coalition govt in protest, as they also did in 2002.