Leaders demand action to slow global warming and help world adapt at global summit US is absent fromScienceNov 11 at 3:38 PM – Nov 12 at 3:04 AM3 outletsThe IndependentBurnham warns climate change is a ‘national security issue’ as he tells Cop31 summit: ‘Britain is back’ Nov 12 at 3:04 AMSky NewsWatch Andy Burnham give speech at COP 31 seen Nov 12 at 2:12 AMWCVBLeaders demand action to slow global warming and help world adapt at global summit US is absent from seen Nov 11 at 3:38 PM