B037
Enhanced Weathering for Carbon Dioxide Removal and Improved Soil and Agronomic Properties
Enhanced Weathering for Carbon Dioxide Removal and Improved Soil and Agronomic Properties
Session ID#: 249160
Session Description:
To achieve carbon neutrality, scalable and cost-effective atmospheric CO2 removal (CDR) is urgently needed. Enhanced rock weathering (ERW) in working lands aims to accelerate natural weathering processes by amending agricultural soils with ground silicate rock. In some cases, ERW may be coupled with organic amendments, for coupled inorganic and organic carbon drawdown. But key unknowns limit accurate CDR quantification: ERW-organic matter interactions, ERW impacts on soil microorganisms, discrepancies between modeled and observed CDR rates, storage/transport of weathering products in multiple soil and groundwater pools, and associated spatial/temporal delays between weathering and CDR. Before widespread adoption, ERW must be accountable, including social acceptance and reliable measurement, reporting and verification (MRV) standards. In this session, we welcome basic and applied ERW studies that advance our ability to quantify its CDR potential, co-benefits and risks, its effects on agroecosystems, and investigations into public perception and policy.
Co-Sponsor(s):
- GC - Global Environmental Change
Index Terms:
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0485 Science policy [BIOGEOSCIENCES]
1039 Alteration and weathering processes [GEOCHEMISTRY]
Primary Convener: Jennifer Pett-Ridge, Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, Livermore, CA, United States
Conveners: Anu Khan, Carbon Removal Standards Initiative, Washington, United States, Isabel P Montanez, University of California Davis, Earth and Planetary Sciences, Davis, CA, United States and Tim Jesper Suhrhoff, Yale University, Yale Center for Natural Carbon Capture, New Haven, CT, United States
Student/Early Career Convener: Samuel Shaheen, Yale University, School of the Environment, New Haven, United States
See more of: Biogeosciences