I assume we are talking about a future context. Of course CO could also be used to make some kind of carbon compounds: https://www.scientificamerican.com/arti

I assume we are talking about a future context. Of course CO could also be used to make some kind of carbon compounds: https://www.scientificamerican.com/article/splitting-carbon-dioxide/ https://www.scientificamerican.com/article/splitting-carbon-...