What are carbon neutral fuels?

Carbon-Neutral Fuels (CNF) are part of a large family of partly or fully fossil-free synthetic fuels. They are blended from chemical components derived from either second-generation feedstock, such as bio-alcohols generated from agricultural and urban-waste biomass, or from the industrial catalytic conversion of syngas (CO + H2), generally known as e-Fuels or Power to Liquid (PtL). In both cases, every part of the fuel blend is of non-fossil origin, so no new carbon dioxide is introduced into the atmosphere during its use. This is because the carbon atoms in the fuels are captured from CO2 already present in the atmosphere. The carbon capturing process can be achieved naturally, through the photosynthesis of plants or algae, or artificially, through processes such as direct air capture (DAC) where CO2 is taken directly from the atmosphere.