It is the duty and responsibility of every nation to act on climate, US President Joe Biden has said at the UN summit COP27.
Mr Biden spoke in Egypt after US mid-term elections delivered better-than-expected results for the president.
He claimed the US is a global leader on climate after it passed sweeping laws to tackle global warming.
About 35,000 people are in Sharm el-Sheikh for the two-week meeting.
“The climate crisis is about human security, economic security, environmental security, national security and the very life of the planet,” said Mr Biden.