Protesters to hold final days of action at climate change summit in U.N. . Copenhagen chief : ` ` We have a chance , a real chance , here and now '' Phil Black urges poor nations to help as Copenhagen climate summit heads into home stretch . `` The resignation is essentially procedural , '' CNN 's Phil Black said , `` and she 'll be replaced by the Danish prime minister . World leaders begin arriving for `` high-level '' negotiations in day of summit .
Protesters to hold final days of action at climate change summit in U.N. . Copenhagen chief : `` We have a chance , a real chance , here and now '' Phil Black urges poor nations to help as Copenhagen climate summit heads into home stretch . World leaders begin arriving for `` high-level '' negotiations in day of summit .