US President Joe Biden has apologized to world leaders for his predecessor Donald Trump's withdrawal from a global climate accord and said fighting the crisis should be seen as an economic opportunity.
In a reference to Trump, who withdrew from the Paris climate deal on world action to reduce greenhouse gas emissions, Biden told the COP26 summit in Glasgow that he was sorry.
"I guess I shouldn't apologize but I do apologize for the fact that the United States in the last administration pulled out of the Paris Accords and put us sort of behind the eight ball a little bit," he said, noting that one of his first actions on taking office this January was to re-enter the accord.
Trump had argued that the Paris accord killed jobs.
But in his main speech to the UN COP26 summit in Glasgow, Biden said that fighting climate change will boost, not hurt economies.
"Within the growing catastrophe I believe there's an incredible opportunity -- not just for the United States, but for all of us," he said in his speech to the summit.