Scientists pushed the hands of the “Doomsday Clock” forward one minute from last year,signalling their increasing pessimism about the efforts of world leaders to handle global threats.rn“It is now five minutes to midnight,” the Bulletin of the Atomic Scientists (BAS) said in a sober assessment of the current trends.“Two years ago,it appeared that world leaders might address the truly global threats that we face.In many cases,that trend has not continued or been reversed.”rn