If you look at the countries that pollute the most, and those that pollute the least, the greatest threat to our environment is not plastic, nor fossil fuels, but the writings of Karl Marx.
And the greatest force for a cleaner environment is a relatively free market.
Only rich nations care about the environment, so if you want a clean environment, you need an economy that helps make people rich.
And that, my friends, is a fact.
I just said basically the same thing in a comment on another post .