Greta Thunberg’s speech at the R20 Austrian World Summit, Vienna, May 2019

Another powerful speech by Greta Thunberg. In presence of UN Secretary General António Guterres, Arnold Schwarzenegger and a great number of heads of states. “This is above all an emergency, and not just any emergency. This is the biggest crisis humanity has ever faced.“ This video was originally posted on Greta Thunberg’s Facebook account.