BioPower's Hardwood fuel pellets are 100% natural and made in Northern Ontario. All wood, no additives in these pellets - a sustainable source of renewable energy. Sustainability and lifecycle: Lifecycle assessments and governing administration analyses suggest that sustainably sourced wood pellets can have lower greenhouse fuel depth than fossil fuels, https://pure-biofuel-wood-pellets66430.dgbloggers.com/39936317/the-basic-principles-of-biofuel-express