Sorry I didn't provide any references but they're only a google search away. https://www.unep.org/news-and-stories/story/air-pollution-hurts-poorest-most https

Sorry I didn't provide any references but they're only a google search away. https://www.unep.org/news-and-stories/story/air-pollution-hurts-poorest-most https://www.unep.org/news-and-stories/story/air-pollution-hu... https://www.cgdev.org/media/developing-countries-are-responsible-63-percent-current-carbon-emissions https://www.cgdev.org/media/developing-countries-are-respons... https://www.unep.org/news-and-stories/press-release/one-three-countries-world-lack-any-legally-mandated-standards https://www.unep.org/news-and-stories/press-release/one-thre... I'm sure you could argue that their pollution is worse due to all of the trade with wealthier countries, fair enough, but currently the only solution to that would deprive them of the vast majority of their income and would set those countries back decades if not centuries given that trade is a major driver of development within any country.