This reply refutes all misstatements, that were published by F. Engelbeen as Comment on an article “Understanding Increasing Atmospheric CO2 “ by Hermann Harde.
All climate experts agree that the basis for calculating changes of the CO2 concentration in the atmosphere is the balance equation or Conservation Law, which sums up all in- and outfluxes of the atmosphere. However, differences exist in the interpretation, how strongly fluxes from anthropogenic sources can affect this balance and how far natural emissions have to be considered.
In three articles of this journal this has been discussed extensively (see: Harde & Salby 2021;
Berry 2021; Schrøder 2022) with the concordant result that mostly nature must be made responsible for the observed CO2 increase. A critical Comment of Andrews (2023) was refuted by Harde (2023) and Berry (2023), but a further Comment (Engelbeen 2023), that mostly refers to the last clarification of Harde (2023), alleges a number of misstatements, in particular concerning the balance equation, which need to be rejected and corrected by this reply.