b We did not optimize any DAC configuration for different areas but rather used publicly available data. The impact of humidity and temperature on energy requirements or on general suitability of a configuration are neglected. Also, we likely underestimate the energy requirements by assuming the process values (in the case of limited data) are identical to those of a complete DAC plant. It is worth noting that this is a first order approximation to explore the costs of a DAC process for different infrastructure and energy supply designs.