There is a general understanding that many medical conditions are caused by factors present in the natural or artificial environment. Environmental health programs intend to prepare students to investigate these correlations and provide insights based on these systematic investigations.

A bachelor's degree is given to students who fulfill the necessary requirements given by the college or university they are attending. The requirements include three to seven years of focus on a subject, typically referred to as a major or concentration.

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.