China and US renew commitment to tackling climate crisis but differences remain

China and the US have renewed their partnership to tackle the climate crisis, and are working closely and productively on ways of bringing down greenhouse gas emissions, China's head of delegation has said. The surprise news from Xie Zhenhua, who briefed a small group of journalists at the Cop27 UN climate summit in Egypt on Saturday, comes as a rare moment of progress amid a conference mired in stalemate and bitter fighting between developed and developing countries. Xie said he and John Kerry, the US special presidential envoy for climate, had enjoyed "very constructive" discussions. "We have had a close…