Pipe Dreams: Evaluation of Ocean CO2 Injection as a Means for Reducing Atmospheric Carbon Dioxide Concentrations

Peer reviewed: 
No, item is not peer reviewed.
Date created: 
2009
Keywords: 
CO2
Climate change
CCS
Ocean storage
Ocean sequestration
Ocean injection
Abstract: 

Deep ocean injection of carbon dioxide (CO2) has been proposed as one means of dealing with the build-up of anthropogenic CO2 in the atmosphere. This study used a series of Earth System Model experiments to inject an idealized pulse of CO2 into each ocean grid cell to assess the efficiency of each location in storing CO2 over a 1,000 year period relative to how that CO2 would enter the ocean naturally. Potential injection sites were selected based on a series of criteria, including physical constraints, technological capability for access, and socio-environmental importance to society. After these restrictions were applied, 19 sites were identified, possessing relative efficiencies between 60 to 100% by year 200 and –7 to 9% by year 1,000. Carbon sequestration costs for the 19 eligible injection sites range from US$75.55 to US$1054.75/ton CO2 net stored, which is not competitive with other carbon sequestration options at this time.

Language: 
English
Document type: 
Thesis
Rights: 
Copyright remains with the author. The author granted permission for the file to be printed, but not for the text to be copied and pasted.
Senior supervisor: 
K
Department: 
School of Resource and Environmental Management - Simon Fraser University
Thesis type: 
Research Project (M.R.M.)
Statistics: