New York Times: With little progress on the primary goal of United Nations climate talks here – preventing further climate change – a secondary quest to help poor countries cope with the effects of a warming world has now become a central theme of the gathering. "Climate change affects us all, but it does not affect us all equally," Ban Ki-moon, secretary general of the United Nations, said Wednesday to a room of newly arrived ministers and heads of state at the opening of high-level sessions of the …