Geography is one of the oldest academic disciplines, dating back to the early Greeks. It remains relevant because it addresses many of today’s environmental and resource exploitation concerns.
Geography focuses on physical environments at a range of temporal and spatial scales, as well as on human interactions with these environments. Sub-disciplines include climatology, hydrology, geomorphology and biogeography which focus on the atmosphere, hydrosphere, lithosphere, and biosphere of Earth, respectively. Geography uses theoretical inquiry, applied investigation and modern systems theory to think about environmental systems and interactions.