The Cop 26 climate summit was dealt a major blow last night as Beijing pushed back against global warming targets – and Joe Biden blasted the leaders of both China and Russia for failing to attend. Puncturing what had appeared to be growing momentum at the talks in Glasgow, China’s top climate envoy suggested limiting the temperature rise to 2C could still be the world’s goal, not the more ambitious 1.5C. Meanwhile President Biden said his Chinese counterpart Xi Jinping had made a ‘big mistake’ by not attending the summit – and also criticised the absent Russian leader Vladimir Putin...