UN chief Ban Ki - moon : ` ( CNN ) -- ` We have a chance , a real chance , here and now '' Clinton urges poor nations to help as the climate summit heads into its stretch . World leaders are arriving for ` ` high - level '' negotiations in final days of summit .
UN chief Ban Ki - moon : ` ` We have a chance , a real chance , here and now '' Clinton urges poor nations to help as the climate summit heads into its stretch . World leaders are arriving for ` ` high - level '' negotiations in final days of summit .