My research focuses on the interactions between geological and biological processes, and how these regulate the environmental quality of ecosystems. Of particular interest are biogeological processes in soils, aquifers, the coastal zone and the ocean.

I aim for a comprehensive understanding of how carbon and other bioactive elements cycle through the earth system. This understanding is essential to assess and minimize the impacts of human activity on our planet’s climate and ecological health.

Researchers in my group carry out experimental, field and theoretical studies in the following areas: nutrient cycling in river catchments and the coastal zone, rock-water interactions, microbial biomineralization processes, soil and groundwater quality, coastal oceanography, and global elemental cycles. We are also a world leader in the development and application of numerical models of reactive transport in sediments, soils, aquifers and coastal environments.

The Georgia Research Alliance is a prime example of the state’s commitment to develop the human capital and technology infrastructure that are needed to be a leading player in tomorrow’s global research and education enterprise. Georgia Tech and the state’s other universities are a hotbed for the talent and ideas that will yield the practical solutions to balance economic growth, environmental responsibility and sustainable development. In addition, the state offers ideal locations for the soil and coastal field studies that are an essential component of my research.