Mike Kelland is the co-founder and CEO of Planetary, a carbon removal startup that’s aiming to draw down gigatonnes of carbon from the atmosphere by accelerating the ocean’s natural, carbon absorbing abilities.

While the world urgently needs to reduce the amount of carbon pollution going into the atmosphere, it’s also becoming clear that we need to remove our historic emissions if we want to limit the worst effects of climate change.

Planetary is working to draw down some of the 8 gigatonnes of CO2 we need to remove every year by 2025 to hit our climate goals. Ocean-based carbon removal is relatively new with lots of technical and measurement problems to be solved, but it’s one of the highest potential pathways for gigatonne-scale removal.

I sat down with Mike in person in Ottawa to talk about Planetary’s approach to carbon removal, the challenges of measuring carbon removal in the open ocean, and how they plan to scale physical plants on coastlines around the world.

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