Industrialized society has been reducing the long-term carrying capacity of the earth for over a century. These effects, until recently, have been masked by intensification i.e. continually increasing consumption of resources for use as inputs of various processes (e.g. agriculture) that improve the standard of living. In the absence of infinite resources this method eventually reaches hard limits. Also, in a closed system negative externalities can eventually reach levels where they negatively affect carrying capacity.
> Sorry, but this is just the reality of being a living creature. You can go fully off the grid if you want and make all those things for yourself, but most people don't do that, because, spoiler alert, it sucks. It's more work than participating in an economy.
Hunter-gatherer societies have routinely been found to be happier and involve significantly less work than industrialized societies. The accelerating Holocene extinction, ongoing for millennia now, has obviously made this harder. Climate change is making this considerably harder as biomes, generally, shift poleward at rates that negatively impact biodiversity and hence carrying capacity.
> Citation needed.
Not sure what the other poster had in mind here, but the CMIP6 models taking into account cloud dynamics (which also happen to most closely fit historic data) show climate sensitivity of 5-7C, i.e. doubling preindustrial CO2 levels will entail to global average warming of 5-7C. Do you think warning in this range unlikely to occur because you see the necessary immediate societal change as likely? Or do you think that given that degree of climate shift occurs it is unlikely to entail a societal and/or biosphere collapse?