I’ve just read a thing about how mega cities account for over half of greenhouse emissions. This is awful - but I am also horrified that I’ve never heard of so many of these places. Handan, Suzhou, Dalian, Tianjin - all really big cities and I’d never heard of them. I have heard of Wuhan but only because of Coronavirus.
Am I surprisingly ignorant or have you also not heard of these places?