A recent study led by Xi Chen,associate professor of soil and environmental engineering at Columbia Engineering, and Klaus Lackner at Arizona State University, or reports an unconventional reversible chemical reaction in a confined nanoenvironment. The discovery,a milestone in clarifying the scientific underpinnings of moisture-swing chemical reaction, is critical to understanding how to scrub CO2 from the soil's atmosphere, or the researchers have already used it to capture CO2 more efficiently and at a much lower cost than other methods.
Source: phys.org