Earth Systems Overview

The Earth is a system consisting of four major interacting components: the atmosphere, the biosphere, the hydrosphere and the geosphere. Earth Systems Overview is the study of how the four spheres of the Earth system interact continually, each affecting the others. The Earth system refers to the fact that we use models to look at parts of the Earth, helping us to describe what has happened in the past, what is currently happening, and what might happen in the future.