sentences:  A member of the Green Party since 1989, he served as council to the then-leader of the French Greens, Dominique Voynet, in the European Parliament, and in 1997 as special adviser to the French Ministry of Territorial Management.Since 1995 he has been an elected official of the 20th arrondissement of Paris.Baupin has been a strong supporter of cooperation between the Greens and the French Socialist Party.