Our research group focuses on understanding the co-evolution of life and environments through Earth’s early history. The periods of time most interesting to us encapsulate intervals of major geological, environmental, and/or biological change on the Earth, including the Neoarchaean/early Palaeoproterozoic, Neoproterozoic, and early Palaeozoic Eras. All of these witnessed transitions in the Earth system thought to have played a key role in shaping life on Earth, yet the connections between environment and biology are not well understood. To tackle these problems, we use laboratory experimentation and theoretical modelling to help us understand how climate and depositional setting influence bottom and porewater chemistry which, in turn, are archived as mineral products that entered ancient sediments.