French President Emmanuel Macron categorically ruled out any renegotiation of the Paris climate accords on Thursday and said US President Donald Trump's decision to withdraw would harm American interests and citizens.
Macron, who made a televised address in French and English, said Trump had "committed an error for the interests of his country, his people and a mistake for the future of our planet."
"I tell you firmly tonight: We will not renegotiate a less ambitious accord. There is no way," said Macron, who took office less than a month ago.
"Don't be mistaken on climate; there is no plan B because there is no planet B."