The comments come following Mr Biden accusing China and Russia of not showing up on climate change commitments.
The US President on Sunday blamed Russia and China for any disappointment over the level of commitment by G20 leaders to fight climate change.
“With regard to the disappointment, the disappointment relates to the fact that … not only Russia but China basically didn’t show up in terms of any commitments to deal with climate change,” Mr Biden said at his news conference at the end of the two-day leaders’ summit in Rome.
“And there’s a reason why people should be disappointed in that,” the President added. “I found it disappointing myself.”
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