“I think when I—I think I was maybe 7, 8, 9 years old when I first heard about the problem. And then, of course, by time, I read about it more and more and sort of understood how important it was and how severe this crisis was. And so, it was around that age and maybe 10, 11, 12. I think I became rea…”— Greta Thunberg, democracynow.org