If you are writing off Greta Thunberg as a case of poster girl for environmentalists-with-vested-interest and believe that her doomsday predictions are just shenanigans - you are missing the point entirely. Here's a teenager who's situation is compounded by Asperger's syndrome and Selective Mutism - speaking out aloud to a community of world leaders. Her scenarios are obviously blown out of proportion - weren't yours when you were adolescent? The point isn't whether or not her predictions are true - the point is we adults care so much less than we should. Mankind will not go extinct - and while some species might, its not going to be a mass extinction either. If it indeed does happen, while millions of poorer humans may perish, most of us using social media, (presumed to be) living in developed cities / towns will survive. Temperature going up by 2° will inflate your Air Conditioning bill and may be add to 'work from home' days when its either snow