Geophysical Sciences Special Seminar: Preston Cosslett Kemeny, Caltech

he long-term stability of Earth’s climate requires a delicate balance between carbon inputs to and outputs from the ocean-atmosphere system. These fluxes are brought into balance through chemical weathering, which has traditionally been viewed as a temperature-dependent process that lowers atmospheric CO2 by converting silicate minerals into carbonate minerals. However, recent research has shown that sulfide oxidation during weathering counteracts the effects of silicate weathering and increases atmospheric CO2.