The Ideas and Society Program has brought together, front line fighters across the generations to reflect on recent experience of climate change and debate future strategy. The former leader of the Greens, Bob Brown, is the revered father of the Australian environmental movement. David Ritter is the leader in Australia and the Pacific of the pioneering world-wide environmental movement, Greenpeace. Dr Amanda Cahill, a Queensland grassroots analyst and activist, is the founder and chief executive of The Next Economy. And Maiysha Moin is a leader in Victoria of one of the most hopeful recent climate change developments, the school strike movement that is taking action on September 20. The debate will be moderated by Professor Katie Holmes and an introduction by Natalie MacDonald.