There’s a reason why the 16-year-old Swedish climate activist Greta Thunberg has successfully goaded powerful politicians into long-overdue climate action in just six months. Thunberg, who is on the autism spectrum, has become a moral authority. Again and again, she’s clearly articulated how adults have shamefully abdicated their basic duties to protect today’s children and future generations from compounding climate catastrophe. “This ongoing irresponsible behavior will no doubt be remembered in history as one of the greatest failures of humankind,” she told the British Parliament. “You only talk about moving forward with the same bad ideas that got us into this mess, even when the only sensible thing to do is pull the emergency brake. You are not mature enough to tell it like is. Even that burden you leave to us children,” she declared at the United Nations. Her ability to sway politicians and the public, in speeches and through her Friday school strikes, is now evident: European leaders have called for aggressive new carbon emissions reductions, citing her movement. Some 1.4 million young people are expected turn out again today in strikes in more than 110 countries.