New York's former mayor Michael Bloomberg has been chosen by Secretary-General Ban Ki-moon to be a U.N. envoy for cities and climate change, AP quoted U.N. diplomats as saying on Friday. The diplomats spoke on condition of anonymity ahead of an official announcement which could come as early as Friday afternoon. Bloomberg served three terms as New York's mayor before handing the reins of the America's largest city to Bill de Blasio on Jan. 1. The group is a network of large cities from around the world committed to taking measures that reduce climate-warming greenhouse gases and climate risks. At the summit, he will hand over the chair and presidency of the group to Eduardo Paes, the mayor of Rio de Janeiro. -- SPA 19:41 LOCAL TIME 16:41 GMT تغريد