Tomorrow’s Air, a new climate action group incubated by the Adventure Travel Trade Association, is taking a different tack, both technologically and socially. It champions carbon removal and storage, as done by the Swiss company Climeworks — an expensive process that filters carbon dioxide from the air, sometimes injecting it underground in basalt rock, where it mineralizes over time. While the process seems sound, “the question is, is it scalable?” said Howard Herzog, a senior research engineer at Massachusetts Institute of Technology, who has studied carbon capture for more than 30 years, noting the high cost of running the technology relative to the amount of carbon removed. “It’s a lot…