Climeworks is a Swiss company whose goal is to make it possible to capture CO2 from the air for below $100 per ton. They believe that by 2030 there will be a global average price on carbon in the range of $100 to $150 a ton. Currently only a few European countries have made progress in assessing a high price on carbon however Climeworks believe more countries will price carbon. Then a company that sells a product or uses a process that creates high emissions (an airline, for instance, or a steel maker) could be required to pay carbon-removal companies $100 per metric ton or more to offset their CO2 output. Or a government might use carbon-tax proceeds to directly pay businesses to collect and bury CO2. www.nytimes.com/2019/02/12/magazine/climeworks-business-climate-change.html