Basic economics has long proven that coal is not coming back. Natural Gas which is far cleaner will continue to take the place of coal.  Trump knows this, he is simply fulfilling an election promise and feeding red meat to his base.

Solar and wind will continue to increase market share, if there is a business case it will be developed. That is the strength of the Americans.

Competing with the slave labor rates in China will be no more or less difficult than it was before Trump pulled out of the Paris Accord.