The goals of an environmental studies program include finding ways to increase energy efficiency, minimize pollution, increase environmental awareness and encourage alternative energy use. The main focus for students is to learn how to assess and solve environmental problems.

A Doctorate of Philosophy, or PhD, may require eight years or more to complete, as well as a dissertation. In most fields, the possession of a PhD qualifies the holder to become a professor of a chosen subject. There are many different programs available.

Part time learning allows one to obtain part-time degrees even if one cannot attend school on a full-time basis. One can learn at his or own pace, gradually accumulating credits which count towards final qualification.