An accompanying editorial observes:
Neither [geo-engineering nor a technological fix for species extinction] is an adequate substitute for efforts to cut emissions, preserve habitats and conserve endangered species. They are, all the same, welcome reminders of what human ingenuity can achieve, and of the fact that there is only a fine line between schemes that are wild-eyed and those that are far-sighted.P.S. 2 Feb: Extinct animal cloned for the first time.
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