Democratic Senator for California Josh Becker attended the first day of activities at COP30 in Brazil on Monday, amid US President Donald Trump's decision not to send high-level representatives to Belem.
Becker strongly criticised Trump for his stance on climate change, accusing him of deceiving the American public by dismissing the issue as a hoax.
This comes amid increasing concerns that the industrialised world, including the US, UK and EU are backtracking on their commitments to reducing carbon emissions, while commitments by others such as China have also drawn criticism.
"Whatever he said to the UN, I agree that he's a liar! He knows better… He's smarter than that. I mean they're deceiving the American people", Becker stated.
Watch full interview here.