By Noel Castree, University of Technology Sydney This article is republished from The Conversation under a Creative Commons license. Read the …

Did the Anthropocene start in 1950 – or much earlier? Here’s why debate over our world-changing impact matters

Formal Region

A formal region is a geographic space that has common attributes and is traditionally defined by economic political, social, or environmental characteristics.

Functional Region

A functional region is a geographic space organised around a node or a central point that is based on specific economic activities, travel or communication. The concept is based on feasibility of settlements on functions.

Perceptual Region

Perceptual region is a space having no exact definition. it only exist because people’s beliefs, feelings and attitudes. Notable examples are Bible Belt and Silicon Valley.

“You might think of a region, such as ‘the US south’, and have a different idea about where it begins and ends, and what its culture is, to someone else. Your perception of the region is unique, and because it’s not a formally recognized place, it’s hard to define it objectively.”