Capturing carbon dioxide and sequestering or converting it into sustainable chemicals and fuels can significantly help in mitigating emissions as we transition away from fossil fuels. But what exactly is the carbon footprint of such a process from cradle-to-grave? How much carbon dioxide feedstock needs to be captured to satisfy the demand for chemicals and fuels? And what is the energy demand of the CO2 capture and utilization processes? Geoff explores these pressing questions in his latest for Advanced Science News.