Perhaps it's not the fault of those poorer countries, but instead the fault of the Enlightened West (those that care about carbon emissions, democratic governance and human rights) illegally dumping their garbage onto other countries[3]?
There's something funny about Western governments illegally dumping thousands of tonnes of trash on the shores of poor countries[4] and then people having the audacity to support sanctions - literally punishing the civilians there by starving them through siege - for not having the ability to properly manage the waste.
[0] https://en.wikipedia.org/wiki/Sanctions_against_Iraq#Effects...
[1] https://www.dw.com/en/tired-of-being-trashed-philippines-rea...
[2] http://www.atchuup.com/countries-used-as-dumping-grounds-of-...
[3] https://www.abc.net.au/news/2019-05-29/malaysia-to-send-tonn...
[4] http://collections.unu.edu/eserv/UNU:6349/PiP_Report.pdf