An atmospheric scientist looks at the relationships between Earth's atmosphere and the other systems it effects. The study of atmospheric sciences includes a number of subdisciplines, including aeronomy, climatology and meteorology.

Requirements for the PhD program often involve the student having already obtained a Master’s degree. Additionally, a thesis or dissertation primarily consisting of original academic research must be submitted. In some countries, this work may even need to be defended in front of a panel.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.