A worker poses for media in the flowing off of in the newly built outflow gallery of the Grindelwald glacier lake near Grindelwald in the Bernese Oberland November 10, 2009. The two kilometres long outflow gallery was built to ban the danger of flood from the glacier lake in Grindelwald and the Luetschinental. Reuters Pictures 1 week ago

A worker poses for media in the flowing off of in the newly built outflow gallery of the Grindelwald glacier lake near Grindelwald in the Bernese Oberland November 10, 2009. The two kilometres long outflow gallery was built to ban the danger of flood from the glacier lake in Grindelwald and the Luetschinental.