While many corporations are focused on capturing CO2 from our atmosphere, working with the ocean has multiple advantages. A renewable energy start-up with the goal to make a major breakthrough in the fight against climate change, Heimdal has created the first-ever ocean-assisted carbon removal plant. It works by pumping saltwater into a machine that uses electricity to rearrange water molecules and remove acid. After the acid is removed, the seawater can be pumped back into the ocean, allowing that de-acidified water to absorb more CO2 from the atmosphere. Heimdal is currently working on a large-scale prototype, with a goal of capturing 5 million tons of CO2 within the next three years.