https://xkcd.com/1732/
The civilized world now comprises of 8 billion people on a planet of depleting resources, energy crisis, pollution, and worst of all a man-made climate change that's many magnitudes faster than any before.
Good luck finding another bread-basket on an inhabitable planet with oceans having widespread oxygen-starved dead zones, a malfunctioning biological carbon pump, collapsing food web, extreme temperatures, intense droughts, diseases and conflicts.
We are seeing these happening already, and it's only going to get worst, much worst, as we reach the tipping points.
I don't think that's a "scientific consensus" on the end of the civilised world coming, that's what I'm talking about, that's what the narrative is.
There are countless examples of Ancient Greek cities/towns that are now several feet under the sea-level, and still, here we are, ~2500 years later and still doing our thing. The Cyrenaica and Northern Africa more generally was/were the bread-basket of the Roman Empire, they're not anymore, and yet, here we are, ~2000 years later, we've found other bread-baskets.