Agence-France Presse: UN chief Ban Ki-moon said Wednesday negotiations have stalled over a climate change deal, and urged world leaders to “get moving,” ahead of a crucial meeting on the issue. Before a summit of almost 100 heads of government in New York next week to discuss climate change, the UN secretary general told the Guardian that leaders held in their hands “the future of this entire humanity”. “We are deeply concerned that the negotiation is not making much headway,” Ban told the …