The picture isn't much brighter for 2018. Pennsylvania, for instance, is poised to see an overall loss in coal jobs now that Dana Mining has planned to close a mine that employs roughly 400.

The job losses are unfortunate, but expected. While renewables are growing quickly, it's mainly natural gas driving the shift -- while it's not as clean as solar or wind, it's cheaper than coal and still reduces CO2 emissions. Companies frequently face the choice of switching away from coal or refocusing on those coal operations that still have plenty of business, such as those shipping to overseas customers.

It's difficult to know whether policies from the White House or the Republicans have had an effect, or even whether they could. While there have been efforts to open the doors to more mining and to roll back environmental protections, those only help if the industry sees a bright future in the first place. When renewable power sources are growing quickly and natural gas is more affordable, it's possible that there's little any politician could do to spark growth.