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Could pumping CO2 under Canada’s coast cause earthquakes?

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West Coast of Vancouver Island near a proposed site for carbon storage

Carbon dioxide could be stored under the seafloor near Vancouver Island

Shutterstock/EB Adventure Photography

A plan to inject millions of tonnes of carbon dioxide into the seafloor off Canada’s west coast appears to come with very little risk of triggering an earthquake. But such “induced seismicity” could be an issue for carbon storage projects elsewhere.

Carbon capture and storage involves capturing carbon dioxide from the air or from a source of emissions and permanently storing it – usually underground – in order to reduce the amount of the greenhouse gas in the atmosphere. …



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