Environmental engineering is an academic area of study that trains students to mitigate or remove the waste and pollution produced by manufacturing and other harmful business industries. Individuals who study environmental engineering often go on to careers in government or work for private companies, tackling issues such as recycling systems, water sanitation and waste disposal solutions.

Botswana is located in southern Africa and has made significant progress in developing its higher education system. The discovery of diamonds substantially increased revenue for the nation, and much of this revenue has been funneled into improving schools and colleges.

The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.

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