The unit provides a broad understanding of the dynamic processes that are active at and near the surface of the Earth and is suitable for general science and arts students with an interest in the geological sciences. KEA102 is a required unit in the Earth Sciences major, and prerequisite for the study of Earth Science units at second year level. The unit delves back through the layers of time, examining fossils and rocks to uncover the evolution of Earth. There is a particular focus on Earth's recent history, contrasting natural vs. anthropogenic changes on Earth systems. The unit is then focused on sustainability- a global challenge of the United Nations. The unit investigates Earth resources that fuel our civilisation and provide critical metals for a net carbon zero future. It brings geoscience into the context of our environment, encompassing issues such as mining, groundwater and natural hazards. Practical sessions are devoted to understanding ancient life, identifying ore minerals and understanding processes of ore formation, understanding environmental issues such as groundwater flow, and introducing hydrocarbon exploration methods. A short excursion explores some of Hobart's geological hazards. A one day field trip will reinforce aspects of ore geology and unravel the history recorded in sedimentary rocks spanning one of the greatest global mass extinction events.