Following the radical right-wing ideological turnout within the Green Party of Hungary (MZP), several environmentalist members decided to left the party and establish the Green Alternative in June 1993 during their first congress at the University of Horticulture (today a faculty within the Corvinus University of Budapest).
In September 1997, it joined the electoral alliance Union for Hungary, dominated by the Republican Party, however they received only 0.19 percent of the votes in the 1998 parliamentary election.
Erzsébet Schmuck left the party on 21 June 1998, she was replaced by Márta Márczis (mother of Benedek Jávor) as co-president.
On 3 June 2000, the ZA merged with the Social Democracy 2000 Foundation to form the Alliance of Green Democrats (ZDSZ).
In that capacity, Droppa established a good relationship with the GreenLeft, a prominent Dutch member of the federation.