Geography is a scientific discipline occupying itself with everything that happens within earth's spheres above the ground. These are conceived in concentric layers, from the planet's core out to the fringes of the atmosphere.
Where Geology considers the inner layers, everything from the pedosphere up to the exosphere is of interest to geographic research. It is often divided into Physical Geography and Human Geography.
More integrative approaches talk about Human Environment Relations directly. A discussion about the anthropocene may also suggest to use terms like ecosphere or geosphere for earth's living and material systems.