Argentina’s President Javier Milei’s negotiating team has left Azerbaijan less than four days into the COP29 climate summit, while France’s climate minister said she wouldn’t return to the talks as political tensions rippled through the conference.

The President-elect, who has called climate change a hoax, is hostile to global efforts to slow planetary warming, shifting the leadership burden to Europe and China.

As COP29 aims to set a much higher climate financing target for the years ahead, wealthy nations insist the money cannot come entirely from their budgets.