President Biden ended his Europe trip by blasting China and Russia 's decision not to attend the COP26 climate summit, saying they handed the U.S. a golden opportunity to lead the world out of crisis. He said China had 'walked away' from the biggest crisis facing the planet. 'We showed up,' he said during a press conference as he prepared to leave the summit in Glasgow. 'We showed up and by showing up we've had a profound impact on the way I think the rest of the world is looking at the United States and its leadership role.' Biden and…