Prof. Rockström vom Potsdamer Institut für Klimafolgen und Greta Thunberg
COP25 in Madrid. An important and inspiring speech by our director Johan Rockström to the delegates of #COP25 in Madrid. Well worth your 7 minutes! Later in the video: the speech by @gretathunberg https://youtu.be/6_b0Jm8D6Mc?t=201