Hans Christian Andersen said it best more than one hundred and fifty years ago. Children have the capacity to speak truth to power when sages are silenced for daring to state the obvious in a climate of denial. Scientific studies have shown, with ever-increasing certainly, for more than four decades now, that human action is changing the planet in alarming ways. What was at first a trickle of change has turned into a flood. Despite years of unseasonal floods, droughts, ice melts, desertification and habitat loss, it is only now, when children take to the streets in protest, that there is any real hope of progress.

And this childrens’ movement has an unlikely heroine; sixteen year-old Greta Thunberg, who didn’t mince words while addressing self-important bodies like the UN COP24 conference or to EU leaders. “You lied to us. You gave us false hope. You told us the future was something to look forward to. Those who will be affected the hardest are already suffering the consequences, but their voices are not heard. Is my microphone on? Can you hear me?” Her words shamed members of the UK Parliament who took the unprecedented step of declaring the climate crisis an emergency.

At the COP24 conference in Poland, she told the assembled delegates: “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 to pull the emergency brake. You are not mature enough to tell it like it is. Even that burden you leave to us children. But I don’t care about being popular. I care about climate justice and the living planet.”

Greta Thunberg’s words and actions are a reminder of the eternal truth of a tale by Danish author Hans Christian Andersen. In his tale, the Emperor’s New Clothes, everyone pretends to see and admire the marvellous garments that are supposedly visible to everyone but the foolish. Until one child cries out, “But the Emperor has no clothes!” At that moment everyone sees the truth and repeats the child’s words. In our real-life parable, Greta Thunberg is the unnamed child in Andersen’s story, and the Emperor stands for the corporations and big businesses that stand to lose their profits if climate change is accepted as an issue that is vital to humanity’s future.