It seems when comparing to all other Western countries, the USA is the only country that hasn't figured out that supporting the coal industry is a bad thing. It's not only a bad thing for the environment, but mainly for the health of the workers themselves, even though filters and conditions in mines have improved compared to a decade ago, on average they still live 8 years less than any other person that isn't working in the coal mines. This doesn't even include the amount of lung issues most of them have when they grow older.
Not to mention, coal itself is not a very profitable business, the coal is cheap and the labor costs are expensive, which means the sold product doesn't really have a big margin on it, and that's the main reason why coal is in decline, not because countries are pushing a cleaner legislation. So regardless of what the USA does, eventually nobody is going to want coal and you'll have essentially wasted a lot of capital that could have been used to train coal miners to work within the clean energy businesses.
Yes banning coal, like they did in my country, a lot of coal workers did lose their job, however, our government was fully prepared and had a huge fund ready and re-schooled every coal mine worker within 2 year period and all of them moved towards clean energy, which at that time needed a huge working force to complete their projects in time.
Then you also have the studies and actual data which supports that the clean energy market will be 10 times bigger than the entire fossil fuel market combined, by 2030 (in terms of projects, spending (If you wanna speak by market share, it will overtake it by then)). They also noticed a trend that clean energy is sustainable in growth due to how technology advances, which keeps the demand high, and solidifies the constant need for skilled workers.
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Clean energy requires a larger work force and also pulls bigger investments in general, thus more jobs, and better paid.