Walmart might not be the most popular company among the green set, but they have taken some amazing steps in the past few years to use renewable energy, become more energy efficient and create less waste. We visit their Fresh Food Distribution Centre in Balzac, Alberta, a marvel of energy efficiency right in our backyard. That's this week in Green Energy Futures CKUA Radio podcast. See video, blog and photos: http://www.greenenergyfutures.ca/episode/unlikely-walmart-sustainability-story