Interesting stream of consciousness. I agree with the whole tribalism will kill us all concept. Especially when resources get more scare, people start migrating, people then start blaming migrants for the lack of resources, then nationalism grows and we get more tribal.
xkcd.com/1732/Check out the xkcd graph if you want to see the data for global temperatures dating back through 1978, just in case you wanted to know the temp for what “a scorcher” meant. This graph goes up to 2016 with projections for the future, so even this graph isn’t a complete pic. I am sure if you add to 2023 then line would move more to the right.