Of course, all that CO2 needs to go somewhere, and Climeworks knows just what to do with it. Selling captured carbon is part of the business plan. They plan to pursue customers in the food and beverage industry, who use it for carbonation and dry ice, as well as other companies that produce things like plastics and building materials. In fact, this debut system outside Zurich is connected to a large greenhouse, which pays to have the collected carbon pumped in to accelerate the growth of lettuce and vegetables (reportedly this can boost growth by some 20%).
Eventually, Climeworks expects that companies will also be paying to have tons and tons of carbon collected and stored underground -- rather than planting thousands of trees -- as a means of meeting their obligation to offset their own carbon footprint.