Keyser in West Virginia represents a national shift in American energy production. And in a town that was defined by coal for generations, change can be difficult.
The rules would lower emissions of mercury and other toxic pollutants that can harm brain development of young children and contribute to heart attacks and other health problems in adults.
Since the return of the Taliban, Afghanistan's coal exports have increased — and so has child labor. At a coal mine in Baghlan province, boys earn between $3 and $8 for a day's work.
A hot, dry summer has meant the water level on the Rhine River, Western Europe's most important waterway, is at a record low, making it too shallow for many ships to pass.
Conservative U.S. Supreme Court justices sided with coal companies in a recent case over the EPA's authority. But market forces have pushed the ongoing decline of coal power.
Burning oil, coal and other fossil fuels releases plumes of tiny, dangerous particles. A new study estimates that eliminating that pollution would save about 50,000 lives in the U.S. each year.
Officials in the country face political pressure to ensure stability as President Xi Jinping prepares to try and award himself a third five-year term as ruling party leader.