COP26 COP26: will China play ball on climate change? Today's Big Question Fears grow that the world’s biggest greenhouse gas emitter will not co-operate at forthcoming climate talks Today's Big Question Is climate change reversible? In Depth US envoy says COP26 will be ‘pivotal moment’ in ‘decisive year’ for environmental issues By Julia O'Driscoll, The Week UK Published 22 July 21 In Depth 1 2 3