But given how slowly we’re decreasing emissions, there are no good options left. Zurich-based Climeworks’s direct air capture plant in Italy will produce methane from captured carbon dioxide and hydrogen, while a second plant in Switzerland will sell carbon dioxide to the soft-drinks industry. So will Global Thermostat of New York, which completed developing its first commercial Technology News plant in Alabama final year. In a shock discovering last summer time, Harvard local weather scientist David Keith calculated that machines may, in principle, pull this off for less than $100 a ton, through an strategy known as direct air capture.…