Campaigners say removing the seven-metre dam, in Fåvang, Norway, which has not been used in 50 years, will help fish thrive. Photograph: Rob Kleinjans

A dam that has blocked the Tromsa River in Norway for more than 100 years was blown up with dynamite this week, freeing migratory routes for fish.

Source: Norway blows up hydro dam to restore river health and fish stocks | Rivers | The Guardian