What will a cleaner tomorrow look like? How do you empower young people? How can countries with different ideologies and cultures reach a consensus over our environment and development? Desmond Tutu, Mary Robinson, and Gro Brundtland debated these questions with young activists Esther and Marvin at a public event in Oslo, with questions from a live online audience. Watch the video and join the discussion.

The event was broadcast live online on 9 May 2012 from Oslo, Norway.