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Summary
Even with a major push, commercial plants capable of turning CO2 or water into liquid fuels are still likely to be 2 decades away (see main text). A simpler version of the technology, however, already appears headed to market. Sundrop Fuels Inc., an energy start-up based in Louisville, Colorado, recently commissioned a 1-megawatt solar array to convert wood waste and other forms of biomass into a gaseous blend of carbon monoxide and hydrogen—known as synthesis gas—that can be converted into gasoline.
