Environment (disambiguation)

Environment may mean:
Environment (biophysical), the physical and biological factors along with their chemical interactions that affect an organism
Natural environment, all living and non-living things that occur naturally on Earth
Built environment, constructed surroundings that provide the setting for human activity, ranging from the large-scale civic surroundings to the personal places
Social environment, the culture that an individual lives in, and the people and institutions with whom they interact
Environmental science, the study of the interactions among the physical, chemical and biological components of the environment
Environmental psychology
Environmental determinism
Environmental policy
Environmental quality
Environmental art

In computing:
Environment variable, the set of environments meaning in a process
Runtime environment, a virtual machine state which gives a software services for processes or programs while a computer is running
Integrated development environment, a kind of computer software that helps computer programmers in developing software
Desktop environment, in computing, is graphical user interface to the computer

Related
Environmentalism, a concern with the preservation of the environment. It studies the biota (living things), the environment, and their interactions. 
Environmental movement  = same as above.
Ecology, a sub-discipline of biology. It is often confused with the environment in general.