What happens underground, when we try to store billions of tonnes of CO2? Andrew finds out (while noisily defrosting his freezer). Paper: Alkalinity Generation Constraints on Basalt Carbonation for Carbon Dioxide Removal at the Gigaton-per-Year Scale: Benjamin M. Tutolo, Adedapo Awolayo, and Calista Brown. Environ. Sci. Technol. 2021,

https://doi.org/10.1021/acs.est.1c02733