TOKYO -- Shares in Asian coal miners are surging as China's ravenous appetite for energy and widespread disruption to supplies push up coal prices.
Investors' rekindled enthusiasm for coal, however, comes amid a global push for cleaner energy, leaving companies with a dilemma over whether and how much to increase output of the commodity.



.jpg?width=178&fit=cover&gravity=faces&dpr=2&quality=medium&source=nar-cms&format=auto&height=100)