NEW : Leaders from Obama to Gadhafi discuss climate change , disarmament . U.S. , Israeli leaders leave seats during Iranian president 's speech . Libyan leader , Gadhafi says , Security Council brings terror , not security . He identified North Korea and Iran as countries whose governments `` threaten to take us down this dangerous slope '' and said he is committed to diplomacy in persuading them to live up to their obligations . Global challenges require unified action , UN secretary - general says .
NEW : Leaders from Obama to Gadhafi discuss climate change , disarmament . U.S. , Israeli leaders leave seats during Iranian president 's speech . Libyan leader , Gadhafi says , Security Council brings terror , not security . Global challenges require unified action , UN secretary - general says .