China Tells Kerry Strained Ties Could Sink Climate Cooperation

China and the United States agree that climate change is a crisis whipping up worsening droughts and storms across the planet. Yet escalating tensions over trade, security and human rights threaten to overshadow efforts between the world’s top two greenhouse gas polluters to stop global temperatures from hitting catastrophic levels. The United States envoy for climate, John Kerry, and his Chinese counterpart, Xie Zhenhua, are wrangling this week over those steps in Tianjin, a northern Chinese city, seeking common ground before international negotiations in Glasgow in November. Leaders from nearly…