Sure. First of all, with carbon, this is bringing six different technologies together, including direct air capture. It does rely on the fact that direct air capture technologies are now being invested in tremendously, and their volumetric capacity, and their costs are going to be reduced.
The capacity in ocean basalt globally is 250,000 gigatonnes. That's what we've estimated in ocean basalt. It's been demonstrated in Iceland that CO2 reacts with the rock, forms solid minerals and is durably sequestered, but most of the basalt is in the ocean, particularly young basalt like this. That's our estimate right now, that it has a giant sequestration reservoir capacity, but it does rely on advancing direct air capture, which we're not doing research on but many others are investing in.
In terms of ocean technologies and Canada, we have great infrastructure, so we have great potential to actually grow these six different technologies in various ways. It's iron fertilization in the ocean, enhanced upwelling, electrochemical solutions in terms of both alkalinity and removing CO2 from seawater, and kelp growth. Some of it is nature-based solutions that don't have a huge capacity to sequester carbon, but they do have other benefits.
It's that range of technologies that we can advance. We're already being contacted by U.S. companies and start-ups that want to use our infrastructure to move their technology along. It would be great to see some Canadian tech start-ups actually use our infrastructure to advance that research and get that technology readiness higher. Because we already have infrastructure, we're way ahead of the game internationally.