NutraPonics, the Alberta-based aquaponics company, has posed the possibility of bringing aquaculture and hydroponics to the Arctic. Company owner Tanner Stewart has theorized that the aquaponics pods produced by NutraPonics could be used by Arctic communities to enhance food supply. The largest obstacle to this, however, lies in the cost of energy, Stewart said during the Arctic Innovations conference hosted at Yukon College this past week. "[Energy cost] is a special challenge here in the North…