The Intertropical Convergence Zone (ITCZ) is a low-pressure band near the equator where the Northern and Southern hemisphere trade winds converge, characterized by heavy rainfall. The ITCZ typically moves seasonally, migrating north during the Northern hemisphere summer, and south during the Southern hemisphere summer, but there has also been a clear overall southward shift of the ITCZ since 1850. This project uses data from the latest Coupled Model Intercomparison Project (CMIP6) historical simulations to investigate this southward shift, made clear by changing precipitation patterns across the hemispheres. This shift could be caused by aerosols, which preferentially cooled the Northern hemisphere. It is known that the ITCZ is drawn toward the hemisphere with more heating, so this project explores and breaks down the global energy budget over the historical period simulated in the models (1850-2014) to further understand the causes of this shift.