British Prime Minister Boris Johnson welcomed the climate pact between the United States and China announced on Wednesday, describing it as a boost to negotiations at the COP26 climate summit in Glasgow. read more "I welcome the strong show of commitment from China and the U.S. last night to step up climate action this decade and keep 1.5C in reach," Johnson said on Twitter. "This is a boost to negotiations as we go into the final days of COP26 and continue working to deliver an ambitious outcome for the planet."