Most catastrophic thinking is related to climate change, though of course it could also be referring to the inevitable end of the solar system as the sun expands.
I thought most catastrophic thinking would be related to personal minutiae. That's why its "catastrophic thinking". Changes to the global climate and the systemic and societal upheaval in response to those changes are significant.
Could be just the general deadlock and inability to come to consensus about any long term future threats. Could be AI, climate change, housing crisis, China, etc. But you’re right, likely climate change.