地球表面，环境与能源哲学博士-生物地球化学

生物地球化学循环对于理解海洋，大气层，生物圈和土壤如何物理和化学相互作用以调节气候和我们所居住的环境至关重要。感兴趣的是生物地球化学在陆地和海洋生态系统养分循环中的作用，物理和化学风化作用，矿物溶解和生长的动力学，海洋中元素的运输，地壳的变化，碳氢化合物的形成和降解以及土壤生态系统。生物地球化学还具有固碳，农业，环境修复和能源等形式的社会应用。在赖斯，生物地球化学非常适合部门间的合作。此类合作包括生物炭倡议和凯克基金会赞助的生物传感器小组。
Biogeochemical cycling is critical to understanding how the oceans, atmosphere, biosphere, and soils physically and chemically interact to modulate climate and the environment we live in. Of interest are the roles of biogeochemistry in nutrient cycling in terrestrial and marine ecosystems, physical and chemical weathering, kinetics of mineral dissolution and growth, element transport in the oceans, alteration of the crust, hydrocarbon formation and degradation, and soil ecosystems. Biogeochemistry also has societal applications in the form of carbon sequestration, agriculture, environmental remediation, and energy. At Rice, biogeochemistry has lent itself well to inter-departmental collaborations. Such collaborations include the biochar initiative and the Keck Foundation-sponsored biosensor group.