Television replaced the church, and the new church liked the environment better than Jesus. Not only was Jesus their rival for eyeballs, so they preferred to get away from that, but eco is more visually interesting, which played on the media better. It took global warming and expanded it from one of many problems out there into Ragnarok. Greta Thunberg is the parallel of Joan of Arc or St Bernadette, seeing CO2. Most people's actions are signalling their observance rather than serious change (e.g. recycling vs taking the bus).