The Department of Earth and Planetary Sciences at the University of California invites applicants for a tenure track Assistant Professor. This position is anticipated to be available from July 1, 2024. UCR Earth and Planetary Sciences is a world-leading leading innovator in revealing the coordinated changes between physical and biological environments during major transitions in Earth's history as well as the relevance of these relationships to planets other than the Earth. Current members of the Department have shown how the mechanics of life's capacity to bio-engineer the planet's oceanic and atmospheric composition and climate is a powerful complement to the geochemistry-based approaches for elucidating Earth history,