Photosynthetic microbes are promising contributors to the bioeconomy. With light and CO2, they can create biomass, biofuels, green chemicals, food ingredients and more. Typically, CO2 is delivered by sparging; however, CO2 macrobubbles quickly rise to the surface and are lost to the atmosphere. This gas transfer inefficiency not only increases operational...

Background Carbon dioxide removal (CDR) methods from atmospheric air, including direct air capture (DAC), is essential to limit the spread of global warming. However, current DAC approaches based on thermal and pressure swings are very energy intensive. Moisture-driven DAC using strong-base anion exchange resins (AER) reversibly binds CO2 from ambient...