Source: Maureen O'Hare, CNN, 5/18/21

 The aviation industry is in crisis, there's a global push to cut carbon emissions, and many of us haven't stepped on a plane or hugged far-flung loved ones in more than a year. Reviving the supersonic dream that died with Concorde's retirement nearly two decades ago seems, at first, like an outrageous fantasy. The British-French airliner Concorde, one of only two supersonic jets to have operated commercially, flew from 1969 to 2003 and was ludicrously expensive and an environmental disaster.

For more of this story, click here.