The full Green Line Extension is open! Post published:December 12, 2022 Post category:Green Line Hundreds rode the first trains, music was played, mayors (current and former) danced, speeches were given, and Somerville became an even better place to live on this fine December day! Keep reading for more photos from Karen Molloy. You Might Also Like Boston Globe on the Green Line’s impact on real estate May 9, 2014 American Planning Association on Green Line extension January 22, 2011 The Somerville News: Dec. 14 meeting December 9, 2004