Mess with the finely balanced ecosystem of the ocean? On purpose?! What could go wrong?! But the truth is, we've messed with it already. The oceans suck up a lot of our carbon, and you may have noticed they get hotter every year. But what if there was a way to store carbon in the ocean, possibly forever, where it wouldn't do any damage?

Welcome to the world of marine geoengineering—a field gaining a lot of attention, as well as a lot of investment, including in Canadian companies. We might not understand the depths of the ocean's ecosystem enough to ensure we won't do anything truly horrible...but eventually we might have no option but to try it anyway...

GUEST: Moira Donovan, writing in The Walrus

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