Fast Company – This Machine Just Started Sucking CO2 Out Of The Air To Save Us From Climate Change

At the new Swiss plant, three stacked shipping containers each hold six of Climeworks’ CO2 collectors. Small fans pull air into the collectors, where a sponge-like filter soaks up carbon dioxide. It takes two or three hours to fully saturate a filter, and then the process reverses: The box closes, and the collector is heated to 212 degrees Fahrenheit, which releases the CO2 in a pure form that can be sold, made into other products, or buried underground.

Because there isn’t yet a global price on carbon, the company imagines that the first customers might be corporations that need help reaching ambitious climate goals. After adopting more obvious solutions, like renewable energy, increased efficiency, and changes in materials or transportation, a company might turn to negative emissions to help it offset the remainder of its footprint.