Where does the excess atmospheric carbon dioxide go (6.0 gigatons of C per year enter the atmosphere from the burning…

Where does the excess atmospheric carbon dioxide go (6.0 gigatons of C per year enter the atmosphere from the burning…

Where does the excess atmospheric carbon dioxide go (6.0 gigatons of C per year enter the atmosphere from the burning of fossil fuels, yet atmospheric concentrations only increase by 3.2 gigatons of C per year)?