It makes for a fascinating, if slightly chaotic read, jumping between chapters on Malena’s career as an opera singer, Greta and Beata’s problems, and the climatic havoc humanity is wreaking on the planet. At times, it feels like there is more than one book here. I was not especially interested in Greta’s mother’s mission to 'take high culture down a notch'; I wanted to understand what drives the teenager who finally got the world to talk about climate change.