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Alberta will serve as a test bed for large-scale carbon capture and sequestration.
High cost and uncertainties over its risks have raised doubts about whether the technology can help address climate change.
The project will capture CO2 by using it to “loosen” the oil in existing wells.
Underground rocks that react with carbon dioxide to form minerals could offer a safe way to keep the greenhouse gas from reaching the atmosphere.
The end of an ambitious carbon-capture project shows that it’s hard to economically justify the technology in the absence of a carbon policy.