We think we need to lead a perfectly green life to stand up against climate change. No! says Carla Reemtsma, 21-year-old climate activist. In her energetic and empowering talk, she defines the lines of responsibility for action – and for change. And she shares a number of practical ideas what we can all do. Carla is a 21 year old student in Politics and Economics student in Münster. When she is not active for climate change, she is in the gymnasium either training the school children or doing gymnastics herself.