Although anthropogenic (human made), post-industrial revolution greenhouse gases are commonly attributed to be the cause of climate change, there are in fact many factors that contribute to climate change and global warming, past and present. Geological evidence indicates that global climate has changed throughout Earth history, including contributions from long-term heat loss from the Earth to the atmosphere, Earth’s orbital behaviour, and a number of plate tectonic processes. In addition, atmospheric and oceanographic dynamics and the way that tectonic plate and continental movements control these, also play a part in changing global climate. Volcanism constantly releases gases to the atmosphere producing contradictory effects on atmospheric temperature and in some cases, global climate. And then, there is the elephant in the room – human generated greenhouse gases. How does their effect stack up against all the previous causes? All will be revealed!