Anthropogenic processes

Anthropogenic effects, processes, objects, or materials are those that are derived from human activities, as opposed to those occurring in natural environments without human influences. The term is often used in the context of environmental externalities in the form of chemical or biological wastes that are produced as by-products of otherwise purposeful human activities. For instance, it is widely believed that the production of carbon dioxide is the primary factor driving anthropogenic climate change. Source: http://en.wikipedia.org/wiki/Anthropogenic