The gas is produced in vast quantities by the burning of fossil fuels and other polluting processes.... The same is true for oxygen itself," Trish Stewart, the OED science editor, told The Telegraph." CO2 is in frequent general use and acts more like a word than a formula or abbreviation, especially in forming compounds.... What happens next depends on so many factors, but one thing we can be sure of is that our language will continue to evolve and to tell the story.".....