The energy industry initially sold wood pellets as a way to clean up coal. And governments bought into that assumption. But now policymakers are questioning that position and even reversing course. At the center of this debate is a UK-based power company called Drax, which converted Europe’s largest coal plant into a biomass facility—one fueled by wood pellets that it imported from southern states in the United States. The debate raises a multitude of questions, namely those centered on pollution and costs. That is, if the additive creates more pollution than either wind or solar energy, why bother, especially since it comes from a power source that depends on subsidies? Merry Dickinson, campaign director for the Dogwood Alliance, told me that Drax now operates entirely on woody biomass… “The amount of wood required … is beyond what is available as waste wood,” Dickinson says. “…much of the supply consists of whole trees.” [Forbes allows 4 free articles per month]