Direct Air Capture (DAC) technologies offer new opportunities to move closer to our climate change mitigation goals. However, we still have a long way to go before DAC can be fully implemented as a mitigation measure. 
The UN Intergovernmental Panel on Climate Change has now made its message very clear. Our actions over the next seven years will affect the evolution of the global climate for the next thousand. This means that we must use all available measures to limit the increase in global temperature. In the DAC device, carbon dioxide is effectively "sucked" out of the atmosphere, reducing its concentration in the air and mitigating its greenhouse effect. DAC technology is useful because it has the potential to help remove CO2 directly from the air and not just stop CO2 emissions from fossil sources. However, DACs also pose a challenge as they must process large volumes of air to produce a discernible impact, making the process expensive. "The concentration of carbon dioxide in the atmosphere is only 0.04 percent," says Jon Hovland, who is chief scientist at the Norwegian scientific institute SINTEF Industry. "Because of this low concentration, a large amount of energy is required to extract the gas, and the equipment requires a large area. This makes the cost per ton of captured CO2 very high," he says. What do we need to do to start DAC in Norway? 
We know of about 18 DAC test and demonstration facilities around the world, operating with a combined annual capture capacity of about 9,000 tons of CO2. The largest facility currently in operation is in Iceland and can capture up to 4,000 tons of gas per year. In Norway, there are many factors in favor of the country being able to build a DAC infrastructure. Norway has large volumes of geological storage capacity on its continental shelf, favorable climatic conditions and a high level of expertise in carbon capture and storage (CCS). (SINTEF, AlphaGalileo)