Kliti Grice FAA, {{post-nominals|country=AUS|FRACI}is a Chemist, an Organic and Isotope Geochemist and Earth Scientist known for her work in identifying geological and environmental causes for mass extinction events. Her multidisciplinary research integrates geological information with data on molecular fossils and their stable carbon, hydrogen and sulfur isotopic compositions to reconstruct details of microbial, fungal and floral inhabitants of modern and ancient aquatic environments and biodiversity hot spots. This information expands our understanding of both the Earth’s history and its current physical state, with implications ranging from energy and mineral resource exploration strategies to environmental sustainability encompassing climate dynamics and expected rates, durations and s