In a recent BBC interview with  Greta Thunberg, David Attenborough asked her what she thought of attacks on her by Trump and others. She answered: ”Those attacks are just funny. Because I mean they obviously don’t mean anything. Well I guess of course it means something. It means that they are terrified of young people bringing change, which they don’t want. But that is just a proof that we are actually doing something. And that they see us as some kind of threat.”

Voices like Thunberg’s are like flowers springing up in a ravaged and desolate landscape.