The Green politics movement is about 50 years old

https://en.wikipedia.org/wiki/Green_politics

In the wake of the first global celebration of Earth Day, a Dutch group called Kabouters, proposing Groene Plannen (“Green Plans”), in June 1970 won 5 of the 45 seats on the Amsterdam City Council, as well as two seats each on councils in The Hague and Leeuwarden and one seat apiece in Arnhem, Alkmaar and Leiden. The first full political party to be created with its basis in environmental issues was the United Tasmania Group, founded in Australia in March 1972 to fight against deforestation and the creation of a dam that would damage Lake Pedder; it gained three percent of the vote in state elections. In May of that year a meeting at Victoria University of Wellington, New Zealand, launched the Values Party, the world’s first nationwide Green party to contest for parliamentary seats; and in November Europe’s first Green party (at first called the People’s Party) was founded in the UK by the principals of The Ecologist magazine among others.

The worldwide movement soon agreed on foundational Four Pillars: Ecology, Democracy, Justice, Nonviolence.

There are now Green parties in almost a hundred countries, generally exhibiting gradual, modest, but steady growth over the years.