How about Thailand or Malaysia (as an example)? They are both fairly developed and hoping to avoid middle income trap and become developed countries within few years. In both countries disregard for enviroment and citizens health is just sad. Toxic haze, toxic water, pollution, trash.
When is the moment that a country decides that it is rich enough and it is time to clean its act?
https://www.bangkokpost.com/thailand/general/1643388/chiang-...
https://www.chiangraitimes.com/thailand-monks-adorn-robes-ma...
https://www.freemalaysiatoday.com/category/nation/2019/08/06...
https://www.malaymail.com/news/malaysia/2019/07/13/two-incid...
https://www.malaymail.com/news/malaysia/2019/07/19/incinerat...
You don't. You account for those externalities all the way (until they become small enough so that further breakdown does not matter).
>When is the moment that a country decides that it is rich enough and it is time to clean its act?
If by cleaning you mean "moving it somewhere else" then it doesn't matter.
That was trash that was illegally dumped there by UK, Australia, and other Western countries, right after China stopped accepting Western trash. https://asklegal.my/p/waste-dumping-malaysia-canada-pollutio...
You use a strong sentence "disregard for environment". What facts lead you say that? Wouldn't the behavior of the Western countries shipping trash over to poorer countries indicate a much stronger disregard for the environment? Or are you implying the environment/nature can be split into one that is local to Western countries and another that is present in developing/poorer countries?
https://gizmodo.com/the-mob-is-secretly-dumping-nuclear-wast...
They did it by expanding markets constantly, invading third world countries to "liberate" their labor forces, synthesizing want via advertising, and many other means.
Now that we are in a globalized economy, we are running out of new markets and cash is just sloshing around. The capitalist class has slashed away as best they can at the welfare state, reducing the possibility of radical redistribution that could right the ship. Maybe now Marx's prediction will have a chance to come true.
A different example: Australia could have a tech industry that didn't pollute (assuming the power weren't coming from brown coal :-( ). But all the hardware designed in AUS could be built in a highly polluting way in China. That would be essentially exporting the pollution.
I don't know the fix, just pointing out the topic at hand. Australia's record on pollution is horrific, especially when you consider how little of our continent is actually habitable.