Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
alternative background backgrounds biofuel biology biomass biomasse brazier briqettes brown bundle burning chip choice cleanenergy closeup color conservation cylinder energy environment environmental fire firewood focus fuel generation group heap heat horizontal leaf material nature nobody oak objects organic particle pellet pellets pine power recycling renewable selective technology tree wood woodpellets