For many hundreds of millions of years, the average temperature at the surface of the Earth has varied by not much more than 20 degrees Celsius, facilitating life on our planet. To maintain such ...

Chemical weathering of continental surfaces consumes 0.3 Gt yr −1 of atmospheric carbon 7. This flux is of the same importance as the net uptake of CO 2 by the terrestrial biosphere in pre-industrial ...

Figure 1: Schematic of the rock cycle and the evolution of controls on atmospheric oxygen. We performed a sensitivity analysis increasing shale oxygen diffusivity (controlled by porosity) and removing ...