@choughdancer you make a good point.
I have barely a carbon toe nail print as I am notoriously tight in my use of resources, walk everywhere, use public transport & will chew string until I get the last drop of flavour. My consumption of goods made in China & India is small. All by choice.
I assume that manufacturing for export does increase emissions in China & India etc, but if all export halted there will still be significant manufacturing & domestic use of fossil fuels etc to meet the needs (& wants) of the many millions, & without trade etc these nations would be less stable. The global economy is a circus of spinning plates, knock out one plate & an artichoke sneezes. I am not saying that there is a natural order to the interaction between states, economies & populations.
What I sure of is that Net Zero in the UK is a naive fantasy peddled by the few who have little idea how to make complex things work - that is not a denial of CC & the impact of varying climate patterns on ecologies & populations.
There is no easy peasy fix, many esteemed scientists & economists differ & we have competing needs & standards of living.
JSO et al have done nothing to change my mind, affiliations, lifestyle choices & commitment to minimal consumption, Much of their argument is poorly stated, fanatic & disruptive.