To date, natural oil still serves as our primary source of fuel, even though a much cleaner alternative exists in the form of synthetic fuel. (sciencedaily.com)
Air capture technologies can also be used to make synthetic fuels. (cato-unbound.org)
«Over the past couple of years my associates and I have talked about synthetic fuels as a major national need to a lot of audiences,» he noted. (insideclimatenews.org)