Dan Cziczo is an atmospheric scientist whose publications have been cited in scientific journals over seven thousand times. Cziczo serves as the current Dept Head, as well as Professor, of the Dept of Earth, Atmospheric, and Planetary Sciences at Purdue University. Cziczo explains the meaning behind the term “climate change” and provides a methodical history of climate change. Topics from this episode include trends in global temperatures, greenhouse gases, clouds, and a survey of historical climate dat