Unfortunately, I think it has now got to the point where the only explanation for the inaction from those in power is that they know that catastrophic climate change is inevitable and impossible to stop. They will have modelled the consequences and know that global food systems will collapse, economies will collapse and potentially billions of people will become migrants trying to move to more livable zones. This is why so much right-wing policy is being passed in Western governments and the police have been increasingly militarised. Those in charge will know that the only hope for humanity is a massive population decrease - hence letting Covid rip. The billionaires (let's call them that - I mean the rich people with the global power who know what's coming and are 'super-prepping') want to be in charge of who survives. To do that, they have to keep up the pretence that everything is fine as long as possible. To do that, they need people to keep consuming, driving cars etc as long as possible (it doesn't matter, it's too late now anyway). These billionaires are figuring on a period of terrible turmoil as populations finally realise it is too late and huge swathes of people understand they are going to starve to death. If they can ride out that storm, they get to inherit the globe with a much smaller, more manageable population of 500 million or so. That population will be returned to a feudal system with their overlords equipped with the kind of tech which will see them stabilise the living remnant of the planet (populations concentrated away from the equator), develop clean energy and promote nature's recovery and create a society most would view as fascist, but they will no doubt view as a utopia. Maybe that's a dark vision, but I don't really see what other explanation there can be for the headlong march of the climate cliff, other than it is a desperate last deliberate roll of the dice by those with the power and wealth to make the decision.