bonfire with wood fuel burns fast giving off heat and light on the incandescent embers in the background, blocked shot in the foreground in the dark of night, Galicia, Spain

bonfire fire firewood flammable furnace burn flame barbecue wood hell fossil fuel heat biological fuel coal steel blacksmith sustainable energy tradition night energy production the hereafter fuel and energy production lighting craft danger climate change no fuel glowing crisis bright light metalwork nature red poverty closeup scarce exhausted exploit recession yellow color tools social issues backgrounds natural light oil crisis