Progress and problems as UN climate change talks end with a deal

Nations agree on implementing 2015 Paris agreement, but put trickiest issues on back burnerThe UN climate change talks ended late on Saturday night in Poland with a deal agreed on how to put the 2015 Paris agreement into action, but with other contentious problems left to be resolved next year.Countries thrashed out the complex details of how to account for and record their greenhouse gas emissions, which will form the basis of a “rulebook” on putting the Paris goals into action. But