Natural environment

The Natural environment means all living and non-living things occurring naturally. It does not include human activity. The universe is natural, but often the term "natural environment" only means nature on Earth.   

Two aspects are usually included::
 Ecological units which are natural systems without much human interference.  These include all vegetation, microorganisms, soil, rocks, atmosphere, and natural events. 
 Universal natural resources and physical phenomena which lack clear-cut boundaries. These include climate, air, water,  energy, radiation, electric charge, and magnetism. 

There is also the built environment, which is not natural. There, man has changed landscapes and natural environment to make cities and agricultural land.

 Etymology 
 EEA multilingual environmental glossary 
 EU Environment Directorate-General
 Rehbar Development Foundation  — Development Foundation/Organization working on Environment, Education and Health

 Related pages 
Biodiversity
Ecosystem
Environmentalism
Habitat
World Environment Day

Category:Environment 
Category:Nature