Coal mining companies have been taking a much tougher line in recent months against the coal industry.
Some are calling for more coal mining regulations, while others are calling on the industry to focus on its core business.
The coal industry is one of the fastest-growing industries in the United States.
Its business is booming, with an estimated $6.6 billion in annual revenue.
The industry employs more than 10 million people.
That’s up 10 percent from a year ago, according to the Bureau of Labor Statistics.
But there’s a growing concern in the industry that the industry is losing its mojo and is losing control of the mines.
The president, as well as the incoming Trump administration, have called for more regulations.
Last week, the Trump administration issued new rules on the production of methane gas, a byproduct of coal mining.
The new rules could force coal companies to reduce emissions and would require them to pay more for permits and permits.
The rule also could make it more difficult for coal companies and their workers to access unemployment benefits, the Associated Press reported.
The Obama administration, in its 2016 coal rule, said the coal mines must meet the same safety standards as other types of mines.
Coal mining has long been one of America’s most lucrative industries, according the U.S. Bureau of Economic Analysis.
The Bureau of the Census estimates that there were nearly 1.4 million active coal mining jobs in the U:S.
In 2016, the Bureau said that coal accounted for nearly 9.5 percent of all coal mining employment in the country.
The Department of Labor estimates that nearly half of coal miners in the state of Kentucky work in jobs that pay an average of $18 an hour or more.
But many of the coal miners are in rural areas.
The Trump administration has not responded to calls to lift restrictions on coal mining in Appalachia, and some companies have started to shift operations out of those regions.
A spokesman for the American Coal Association told the Associated News that the company supports the coal mining industry and believes it’s important to keep the industry going in the face of climate change.
The spokesman said that the coal sector is the fastest growing in the economy, but that it’s the right thing to do.
He said that companies should be investing in the mines that are here.
Coal miners in Pennsylvania said they are concerned that the Trump Administration is not taking action on climate change, and they want more protection for the mines and jobs.
“It’s like we’re living in an economic bubble,” said Michael Wintrich, a retired coal miner.
“We have to be ready for whatever comes.”
The AP’s Michael C. Bender contributed to this report.