For a carbon-neutral bioeconomy, processes are needed that can efficiently capture CO2 and convert it into valuable products. Formic acid, or more specifically its salt, formate, is considered a promising candidate as it can be produced from CO₂ using renewable electricity. It is also easy to transport, non-toxic and versatile. Research is focusing, among other things, on microorganisms that are "fed" formic acid made from CO₂ and use it to produce basic chemicals or fuels.