China and Europe's importance to coal producers in the United States cannot be understated. Investors who witnessed the pop of many coal companies' share price last week are well aware of this. Positive manufacturing and factory data out of China and Europe, respectively, helped many achieve strong gains. But does the continued improvement in Europe and a turnaround in China help these companies over the next 10-15 years? Tune in below for Motley Fool analyst Taylor Muckerman's opinion.