In Geography, (specifically in human geography) Filtering is the process by which social groups move out of a designated area, which often changes the social nature of the area. This is a phenomena often related to urban renewal and other urban topic areas.

Geography is the study of the earth, but social geography is the study of people and their effects on, and movement around the earth.

Basically, social geography is a sub-topic of geography that only focus' on the human side to it.

Topics of social geography include urbanisation, urban decay, migration and energy.

Human geography covers a wide variety of topics, which include urban, cultural, political, social and economical geography.

The main divisions within human geography reflect a concern with different types of human activities or ways of living. Some examples of human geography include urban geography, economic geography, cultural geography, political geography, social geography, and population geography.

urban geography
regional geography