I have just read this entire thread and I have two observations.

1 the "tumble" discussion is unbelievably ironic as the whole public climate discussion has for years been a case of mass distraction IMO.

2 The other central discussion is dominated by someone , clearly a skeptic, and repeatably described as a troll, and although the basic assumptions taken are just factually wrong the context of the consequences discussed are more insightful that the rebuttals.

So currently the power and money is dominated by industries that do not want to change and they frustrate attempts to create meaningful global change. What change has occurred has been when money and power wish that change. Political courage will be needed to make things happen with any sort of urgency IMO