The Greens (Die Gruene) have been consistently ranked third in opinion polls in recent months ahead of the German general election.
Led by Juergen Trittin, a former environment minister, and Katrin Goering-Eckardt, the surprise winner of the party's primaries, the party is eyeing a red-green coalition with the Socialists.
Here are some important facts about the candidate:
Juergen Trittin - Co-leader of the Green's parliamentary group alongside Katrin Goering-Eckardt.
- 1980: Joined the Greens
- 1998-2005: Environment minister
More top news
Experts say a trial into an early Ebola vaccine shows it is safe, but did not perform as well as had been hoped.
Frequent snowfall expected across much of the north this evening and strong northeasterly winds will make it feel noticeably cooler.
A Jewish leader was forced to escape from the camp through a window last night, when he was locked in during a TV broadcast.