The Green Party (Swedish: Miljöpartiet de gröna, lit. 'Environmental Party, the Greens', MP), commonly referred to as Miljöpartiet in Swedish, is a political party in Sweden based on green politics. Sparked by the anti-nuclear power movement following the 1980 nuclear power referendum, the party was founded in 1981 out of a discontent with the existing parties' environmental policies. In the 1988 general election they won seats in the Swedish Riksdag for the first time, capturing 5.5 percent of the vote, and becoming the first new party to enter parliament in seventy years.
https://en.wikipedia.org/wiki/Green_Party_(Sweden)