CO2 Sequestration and Storage in Antarctica: Concept, Initial Prototype, and Meteorological Response

Andrea Orton, Purdue University


Abstract:   Increasing CO2 concentrations in the Earth's atmosphere have led to global warming with climate change effects.  Future RCP scenarios suggest that local solutions to limit emissions are necessary but may not suffice.  A climate intervention approach of removing CO2 from the atmosphere through dry ice deposition and storage in Antarctica (Agee et al., 2013) is considered.  While technology needs continued development, the global meteorological response to significant carbon dioxide removal (CDR) in Antarctica takes precedence.  Various Antarctica CDR scenarios are simulated through the CESM 2.1.1.  These simulations include four modern simulations (15 years) and two future SSP1-2.6 simulations (50 years).  Modern simulations show 2m-air temperature has the strongest signal with more CO2 removal.  SSP1-2.6 simulations show that an additional 1oC of warming can be inhibited by continuing sequestration and limiting emissions.  Future considerations include ensemble runs, sea level rise, carbon cycle response, convective parameters, and relocation of sequestration.

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