English: "The floating bars represent the range of variability of results found in multiple studies and/or obtained for multiple supply chains configurations: the lowest bound represents the minimum value found, the highest the maximum. Dashed lines show, for illustrative purposes, the GHG emissions associated to multiple alternative energy systems available in the EU: Black line = EU-coal power plant (Source: Edwards et al. 2014); Blue line = EU-natural gas power plant (Source: Edwards et al. 2014); Orange line: EU-28 average electricity mix (Source: Edwards et al. 2014); Green line: Fossil Fuel Comparator as defined in (EC, 2016). The coloured areas represent levels of GHG emissions savings of the bioenergy commodity compared to the legally defined fossil fuel comparator (Giuntoli et al. 2017): the white area indicates GHG savings above 70%, the green area, above 80% and the blue area, above 85%. GHG emissions for biogas from cattle slurry are out of the negative scale (grey arrow)." (p. 96)