The Puerto Rico Department of Natural and Environmental Resources, the DRNA, is studying mass combustion of solid waste as a way to make electricity and cut the volume going into landfills, Metro Puerto Rico reported on Nov. 5. ^[1] The pressure behind the idea is in the numbers. Eleven of the island's 24 operating landfills are under formal closure orders from the United States Environmental Protection Agency. ^[2] And Puerto Rico throws away more than most: about 5 pounds of solid waste per person each day, above the global average of 3 to 4 pounds. ^[3] The facts here name a problem and a method under review. They do not say when the DRNA will decide, where any combustion plant would sit, or what the 11 landfills under order do next. Those are the questions a reader on the island will want answered before the trash stops going into the ground.