Mathematics in Geosciences

Date: April 12, 2023

Time: 11:00AM - 12:00PM

Location: BLOC 302

Speaker: Shuang Zhang, Department of Oceanography, Texas A&M University, College St

Title: The role of rivers in regulating the carbon capture potential of enhanced rock weathering https://tamu.zoom.us/j/99895946887?pwd=bWdLays0TmY1d0E5UnFVOFhocFJQZz09

Abstract: Technologies and approaches that remove and sequester carbon dioxide (CO2) from Earth’s atmosphere are likely to play a significant role in mitigating anthropogenic climate disruption in the coming century. Enhanced rock weathering (ERW) on the land surface is one extensively discussed approach toward carbon dioxide removal (CDR), but the capacity of rivers to carry dissolved products derived from ERW without CO2 re-release in the river is largely unexplored, hindering a full understanding of the life cycle of ERW and its associated maximum CDR potential. This talk will present some modeling works built upon river/stream carbonate chemistry to estimate the upper limits on the carbon transport potential of rivers. Modeling challenges will be highlighted and the carbon capture potential of enhanced rock weathering will be discussed.